غیر معتبر

The Persian term غیر معتبر (Gheyr-e Mo'tabar) is a sophisticated compound adjective used to describe something that lacks validity, credibility, or official standing. Linguistically, it is composed of two parts: 'Gheyr' (meaning non- or un-) and 'Mo'tabar' (meaning valid, reputable, or credible). When combined, they create a powerful descriptor used in legal, technical, academic, and social contexts to signal that a piece of information, a document, or even a person's reputation is not to be trusted or is no longer functional. In the modern era, you will most frequently encounter this word when dealing with digital security—such as an invalid SSL certificate—or in administrative settings where a permit or identification card has expired. It carries a weight of formality; while you might use simpler words like 'kharāb' (broken) for a toy, you use 'gheyr-e mo'tabar' for a passport that has been punched or a check that has bounced. It implies that the object in question may once have had value or authority, but that status has been stripped away or was never legitimate to begin with.

Legal Context

In Iranian law, a contract that is 'gheyr-e mo'tabar' is null and void, meaning it holds no legal weight in court. This could be due to a lack of proper signatures or the presence of illegal clauses.

Beyond the physical or digital, 'gheyr-e mo'tabar' can apply to abstract concepts like news or rumors. In an age of misinformation, Persian speakers use this term to warn others against believing 'shāye'āt-e gheyr-e mo'tabar' (unreliable rumors). It suggests a lack of 'e'tebār' (credit/trustworthiness). If a person is described as having a 'gheyr-e mo'tabar' character, it means they are unreputable or have a history of dishonesty. However, this usage is slightly more formal than the colloquial 'bi-e'tebār'. Understanding this word is essential for B1 learners because it bridges the gap between everyday conversation and the professional world. Whether you are reading a formal letter from a university, navigating a banking app, or listening to a news broadcast, this term acts as a critical red flag, signaling that the subject at hand is invalid or untrustworthy. It is the linguistic equivalent of a 'Void' stamp on a document. Furthermore, in the context of academic research, a source that is deemed 'gheyr-e mo'tabar' is one that lacks peer review or scholarly rigor, which is a common critique in Iranian universities.

Digital Usage

When a website's security certificate is expired, Persian browsers will display a message stating the connection is 'gheyr-e mo'tabar'.

Socially, the word can be used to dismiss an argument. If someone makes a claim based on weak evidence, a Persian speaker might respond by saying the claim is 'gheyr-e mo'tabar'. This is more polite than calling someone a liar but just as effective in neutralizing their point. It moves the focus from the person's intent to the objective validity of their statement. In historical contexts, 'gheyr-e mo'tabar' might refer to a coin that is no longer in circulation or a title that has been revoked. The versatility of this word lies in its ability to negate the inherent quality of 'e'tebār' (validity/credit). Because 'e'tebār' is a deeply valued concept in Persian culture—linked to honor and reliability—its negation is taken very seriously. To call something 'gheyr-e mo'tabar' is to strip it of its social or legal utility. This makes it a high-frequency word in news media, where journalists must distinguish between verified and unverified reports. As you progress in your Persian studies, using 'gheyr-e mo'tabar' instead of 'bad' or 'dorost nist' will significantly elevate your register, making you sound more like a native speaker who understands the nuances of professional and formal communication.

Grammar Note

'Gheyr' functions as a negative prefix. It is almost always followed by an adjective or a noun used adjectivally.

Using 'gheyr-e mo'tabar' correctly requires an understanding of the Ezafe construction and the placement of adjectives in Persian. Typically, the noun being described comes first, followed by the Ezafe (-e), and then 'gheyr-e mo'tabar'. For example, 'Madrak-e gheyr-e mo'tabar' (An invalid document). However, it can also function as a predicate adjective after a linking verb like 'ast' (is) or 'shodan' (to become). In these cases, the sentence structure is: [Subject] + [gheyr-e mo'tabar] + [Verb]. For instance, 'In bilit gheyr-e mo'tabar ast' (This ticket is invalid). It is important to note that 'gheyr-e mo'tabar' does not change for gender or number, as Persian adjectives are generally invariant. This makes it relatively easy to plug into various sentence patterns once you grasp the basic vocabulary. Let's explore several scenarios where this word is indispensable.

Describing Documents

When a passport, ID card, or visa is no longer legal, use 'gheyr-e mo'tabar'. Example: 'Gozarnāmeh-ye u gheyr-e mo'tabar bud' (His passport was invalid).

In technical or IT-related sentences, 'gheyr-e mo'tabar' describes errors or invalid inputs. If a user enters an incorrect password or an invalid email address, the system might return a message like 'Email-e vāred shodeh gheyr-e mo'tabar ast' (The entered email is invalid). This usage is very common in software localization. Furthermore, in the realm of logic and philosophy, one might argue that a premise is 'gheyr-e mo'tabar'. This indicates that the reasoning doesn't hold up under scrutiny. For students of Persian, practicing these different contexts is vital. You should try to pair 'gheyr-e mo'tabar' with common nouns like 'shāye'eh' (rumor), 'link' (link), 'code' (code), and 'shomāreh' (number). By doing so, you build a mental map of where the word fits naturally. Another important aspect is the transition from 'mo'tabar' to 'gheyr-e mo'tabar'. You can describe the process of something losing its validity using the verb 'shodan'. For example, 'Ba'd az enghazā, in kārt gheyr-e mo'tabar mishavad' (After expiration, this card becomes invalid).

Academic Writing

Use it to critique sources. 'Estefādeh az dādeh-hā-ye gheyr-e mo'tabar natāyej-e tahghigh rā kharāb mikonad' (Using invalid data ruins the research results).

In formal speeches or political discourse, 'gheyr-e mo'tabar' is used to delegitimize an opponent's claims or the results of a process. For example, a candidate might call an election 'gheyr-e mo'tabar' if they believe fraud occurred. This is a very strong statement in Persian. It’s also worth noting the pronunciation: the 'gh' is a voiced uvular fricative (like a French 'r' but further back), and the 'ei' in 'gheyr' is a diphthong similar to the 'ay' in 'say'. The 'mo'tabar' part has a glottal stop (the 'ain' sound) which is often subtle in modern speech but gives the word its formal, Arabic-derived character. Mastering this pronunciation will make your use of the word sound authoritative. In everyday life, you might hear a taxi driver say a certain route is 'gheyr-e mo'tabar' if the road is closed or the map is wrong, though they are more likely to use 'ghalat' (wrong) in very informal settings. Stick to 'gheyr-e mo'tabar' in any situation involving documents, money, or official information to ensure you are using the correct register.

Negating Reputation

'Shakhsiat-e gheyr-e mo'tabar' refers to someone whose word or character cannot be trusted in professional circles.

If you spend any time in Iran or interacting with Persian-speaking institutions, you will hear 'gheyr-e mo'tabar' in several specific 'habitats'. The first and most common is the banking sector. Whether you are at a physical branch in Tehran or using an app like 'App' or 'Saman Bank', any issue with a card, a transaction, or a check will be labeled with this term. If you try to use a card that has been blocked, the ATM screen will flash 'Kārt-e gheyr-e mo'tabar'. This is a high-stress but high-frequency encounter for many. Secondly, you will hear it at border control or government offices (Daftar-e Pishkhān). If your residency permit (Eghāmat) or passport has a problem, the officer will use this term to explain why they cannot process your request. It is the language of bureaucracy. In these settings, the word is delivered with a tone of finality and officialdom. It’s not a negotiation; it’s a statement of fact regarding the status of your documents.

In the Media

News anchors on IRIB or BBC Persian often use the term when discussing 'fake news' or unverified reports from social media, labeling them as 'akhbār-e gheyr-e mo'tabar'.

Another common 'habitat' is the university or academic environment. Professors often warn students against using 'gheyr-e mo'tabar' sources like Wikipedia or personal blogs for their research papers. In this context, the word is synonymous with 'unreliable' or 'non-scholarly'. You might hear a professor say, 'In manba' barāye ye maghāleh-ye elmi gheyr-e mo'tabar ast' (This source is unreliable for a scientific article). This teaches students the importance of 'e'tebār' in the intellectual world. Furthermore, in the world of commerce and online shopping—which has exploded in Iran with platforms like Digikala—customer service representatives use 'gheyr-e mo'tabar' to describe discount codes (kodi-e takhfif) that have expired or are being used incorrectly. If you call support because a code isn't working, they will likely tell you, 'In kod digeh gheyr-e mo'tabar shodeh' (This code has become invalid now). This usage is very practical for everyday life.

Technical Support

IT professionals use it for 'invalid arguments' in code or 'invalid sessions' in web browsing. 'Neshash-e shomā gheyr-e mo'tabar ast' (Your session is invalid).

Lastly, you will hear it in legal dramas or real-life court cases. Lawyers often argue that a piece of evidence (madrak) or a witness's testimony (shahādat) is 'gheyr-e mo'tabar'. In this high-stakes environment, the word carries the power to change the outcome of a trial. It suggests that the evidence does not meet the legal standards of truth or reliability. For a B1 learner, hearing this word should immediately trigger a sense of 'caution' or 'rejection'. It is a word that defines boundaries—what is accepted and what is cast out. Whether it's a broken link on a website or a fraudulent document, 'gheyr-e mo'tabar' is the universal Persian signal for 'no-go'. By paying attention to these contexts, you'll notice that while the word is formal, its application is incredibly broad, touching almost every aspect of organized society in the Persian-speaking world. From the digital 'invalid' to the legal 'null and void', this term is a cornerstone of adult, professional Persian communication.

Travel & Transport

Conductors on trains or metro inspectors use it for tickets that are for the wrong zone or date. 'Bilit-e shomā barāye in khat gheyr-e mo'tabar ast'.

One of the most frequent mistakes learners make with 'gheyr-e mo'tabar' is confusing it with other words that mean 'wrong' or 'bad'. For instance, using 'ghalat' (wrong) when you mean 'invalid'. While 'ghalat' refers to an error in fact or spelling (like 2+2=5), 'gheyr-e mo'tabar' refers to a lack of status or authority. If you say a passport is 'ghalat', it sounds like the spelling is wrong; if you say it is 'gheyr-e mo'tabar', it means it’s expired or fake. Another common error is the confusion with 'bi-e'tebār'. While they are very similar, 'bi-e'tebār' is more often used for people or reputations in a social/emotional sense, and it is slightly less formal. You might say a person is 'bi-e'tebār' (discredited) in their neighborhood, but you would call a bank check 'gheyr-e mo'tabar'. Using the wrong one in a formal document can make you sound less professional. Furthermore, learners sometimes forget the 'Gheyr' part and just say 'mo'tabar' (valid), which completely flips the meaning—a potentially disastrous mistake in a legal or financial context!

Gheyr vs. Na

Do not use the prefix 'na-' with 'mo'tabar'. While 'namo'tabar' exists, it is extremely rare and sounds unnatural. Always use 'gheyr-e'.

Another nuance involves the word 'bātel' (null/void). 'Bātel' is often used as a synonym for 'gheyr-e mo'tabar', but 'bātel' specifically implies that something has been *cancelled* or *annulled*. 'Gheyr-e mo'tabar' is broader; it can mean something was never valid in the first place. For example, a counterfeit 100-dollar bill is 'gheyr-e mo'tabar', but a legitimate ticket that has already been used is 'bātel'. Using 'bātel' for a fake document is a minor mistake, but using 'gheyr-e mo'tabar' is more precise. Additionally, learners often struggle with the pronunciation of the 'ain' in 'mo'tabar'. Some omit it entirely, saying 'motabar', while others over-emphasize it. The key is a slight catch in the throat. Without this, the word loses its formal weight. Also, remember that 'gheyr' is a separate word in Persian script, but it is linked to 'mo'tabar' via the Ezafe. In some digital fonts, they might appear very close together, but they are distinct units of meaning. Finally, avoid using 'gheyr-e mo'tabar' for physical objects that are broken. If a chair is broken, it's 'shakasteh', not 'gheyr-e mo'tabar'. The latter is reserved for things that have 'e'tebār' (credit, value, validity).

Confusing with 'Fāsed'

'Fāsed' is for spoiled food or corrupt people. 'Gheyr-e mo'tabar' is for invalid documents or information. Don't mix them up!

One last mistake is related to the register. Using 'gheyr-e mo'tabar' in a very casual setting—like telling a friend their joke is 'invalid'—sounds overly stiff and robotic. In casual Persian, you’d use 'maskhareh' (ridiculous) or 'alaki' (fake/pointless). Reserve 'gheyr-e mo'tabar' for when you want to sound serious, professional, or when you are dealing with official systems. It's also important to remember that 'gheyr' can be used with many other adjectives (e.g., 'gheyr-e ghānuni' for illegal), so don't assume 'gheyr' always means 'invalid'. It simply means 'not'. By understanding these common pitfalls, you will be able to use 'gheyr-e mo'tabar' with the precision of a native speaker, avoiding the awkwardness that comes with misapplied formal vocabulary. Practice identifying 'gheyr-e mo'tabar' in news headlines to see how it contrasts with more informal terms in the same articles. This will help solidify your understanding of its specific 'flavor' in the Persian language ecosystem.

Register Check

Is it a bank? Use 'gheyr-e mo'tabar'. Is it a game with a child? Use 'ghalat'.

To truly master 'gheyr-e mo'tabar', you must understand its synonyms and how they differ in shade and context. Persian is a language rich in synonyms, often having one word of Persian origin and another of Arabic origin. The most direct synonym is 'bi-e'tebār'. While 'gheyr-e mo'tabar' is technical and formal, 'bi-e'tebār' is more general. You can say 'u shakhsi bi-e'tebār ast' (he is an unreliable person), which sounds more natural in social conversation than 'gheyr-e mo'tabar'. Another close relative is 'bātel', which we mentioned earlier. 'Bātel' specifically means voided or cancelled. If you have a permit that you've used and is now finished, it is 'bātel'. If you have a permit that was forged, it is 'gheyr-e mo'tabar'. Understanding this distinction helps you choose the right word for the right 'reason' for invalidity. Then there is 'ja'li', which means 'fake' or 'counterfeit'. A 'madrak-e ja'li' (fake degree) is by definition 'gheyr-e mo'tabar', but 'ja'li' focuses on the act of forgery, while 'gheyr-e mo'tabar' focuses on the status of the document.

Gheyr-e Mo'tabar vs. Bātel

'Gheyr-e mo'tabar' is 'invalid' (broad). 'Bātel' is 'void' or 'annulled' (specific to cancellation).

Gheyr-e Mo'tabar vs. Ja'li

'Ja'li' means counterfeit. A document can be 'gheyr-e mo'tabar' simply because it's old, but 'ja'li' means it was created to deceive.

In more colloquial settings, you might hear the word 'alaki'. This is a very common slang term meaning 'fake', 'pointless', or 'unreliable'. If a friend tells you a story that sounds like a lie, you might say, 'Alaki nago!' (Don't tell fake stories/Don't lie!). You would never use 'gheyr-e mo'tabar' in that situation unless you were being sarcastically formal. Conversely, you wouldn't use 'alaki' to describe a bank check in a formal letter. Another interesting alternative is 'mardud' (rejected). This is often used in the context of exams or applications. If an application is 'mardud', it has been rejected, making it 'gheyr-e mo'tabar' for the purpose of moving forward. Also, consider 'nādorost' (incorrect). While 'gheyr-e mo'tabar' is about validity, 'nādorost' is about accuracy. An 'email-e nādorost' might have a typo, but an 'email-e gheyr-e mo'tabar' might not exist or be formatted incorrectly for the system. Learning these distinctions allows you to paint a more precise picture in the mind of your listener.

Gheyr-e Mo'tabar vs. Nādorost

'Nādorost' = Incorrect/Wrong. 'Gheyr-e mo'tabar' = Invalid/Unreputable.

Finally, for very formal or literary contexts, you might encounter 'fāghed-e e'tebār' (lacking validity). This is the highest register possible. You will see this on official government decrees or in high-level legal contracts. 'In sanad fāghed-e e'tebār ast' is the ultimate way to say something is invalid. As a B1 learner, you don't need to use 'fāghed-e e'tebār' often, but you should recognize it as the 'big brother' of 'gheyr-e mo'tabar'. By comparing these words, you can see that 'gheyr-e mo'tabar' sits comfortably in the middle: more formal than 'alaki' and 'bi-e'tebār', but more common and versatile than 'fāghed-e e'tebār'. It is the 'Goldilocks' word for most professional situations. Practice swapping 'gheyr-e mo'tabar' with these alternatives in different sentences to feel the change in tone. This exercise will deepen your linguistic intuition and help you navigate the complex social registers of the Persian language with confidence and grace.

Technical Term

In logic, 'gheyr-e mo'tabar' is the standard translation for an 'invalid' argument.