B2 Expression Very Formal 6 min read

Indubitavelmente

Undoubtedly.

Literally: Undoubtably (In- + Dubitable + -ly)

In 15 Seconds

  • Expresses absolute, undeniable certainty.
  • Highly formal, ideal for writing or speeches.
  • Can be used ironically for humor in casual settings.
  • The intellectual sibling of 'com certeza'.

Meaning

Indubitavelmente is the linguistic equivalent of a heavy-duty stamp of absolute certainty. It conveys that something is beyond any question, debate, or shadow of a doubt. Use it when you want to sound intellectually precise, professionally authoritative, or slightly dramatic about your conviction.

Key Examples

3 of 10
1

Job interview on Zoom

Indubitavelmente, estou pronto para este desafio.

Undoubtedly, I am ready for this challenge.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
2

Formal email to a client

Este é, indubitavelmente, o melhor investimento para sua empresa.

This is, undoubtedly, the best investment for your company.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
3

Instagram caption for a sunset

Indubitavelmente, a natureza é a melhor artista. 🌅

Undoubtedly, nature is the best artist.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
🌍

Cultural Background

Used in legal and academic circles.

🎯

Use sparingly

Don't overuse it.

In 15 Seconds

  • Expresses absolute, undeniable certainty.
  • Highly formal, ideal for writing or speeches.
  • Can be used ironically for humor in casual settings.
  • The intellectual sibling of 'com certeza'.

What It Means

Ever felt so sure about something that a simple "yes" felt too small? That is where indubitavelmente comes into play. It is a long, rhythmic word that carries the weight of a thousand nods. Think of it as the "fancy suit" version of com certeza. It tells your listener that you have examined every angle and found zero room for error. It is derived from the Latin indubitabilis, which literally means something that cannot be doubted. When you use it, you are not just sharing an opinion. You are stating a fact that is, well, indubitable. It is the ultimate mic-drop for certainty in the Portuguese language.

How To Use It

You will usually find this word at the beginning of a sentence. It sets the tone for everything that follows. You can also tuck it between the subject and the verb for a sophisticated mid-sentence punch. For example, Ele é, indubitavelmente, o melhor jogador. Notice the commas? They act like a red carpet for the word. In writing, it is a favorite for lawyers, professors, and people who write very long LinkedIn posts. In speech, it is much rarer. If you use it while ordering a burger, the cashier might think you are a time-traveling poet. Use it sparingly to keep its power intact.

Formality & Register

This word lives at the top of the formality mountain. On a scale of 1 to 10, it is a solid 9.5. It is "Very Formal" to "Formal." You will hear it in courtrooms, during political debates, or in academic lectures. It is the opposite of slang like bora or valeu. However, there is a fun loophole. You can use it informally if you are being intentionally ironic or "extra." If your friend asks if the pizza is good, saying indubitavelmente makes you sound like a food critic. It adds a layer of humor because it is so unnecessarily posh for the situation. Just do not use it with your Uber driver unless you want a very confused look in the rearview mirror.

Real-Life Examples

Imagine you are in a Zoom meeting with your boss. They ask if the new marketing strategy will work. You look into the camera and say, Indubitavelmente, teremos ótimos resultados. You sound like a genius who has already seen the future. Or maybe you are writing a formal email to a professor. You might write, Esta é, indubitavelmente, a melhor abordagem para o tema. It shows respect and command of the language. Even on social media, you might see a meme caption like: Indubitavelmente, segunda-feira é o pior dia. It takes a common feeling and makes it sound like a grand philosophical truth.

When To Use It

Use it when you are writing a thesis or a formal report. It is perfect for concluding an argument where you have presented a lot of evidence. Use it when you are giving a speech at a wedding or a graduation. It adds a touch of class and gravity to your words. It is also great for those moments when someone is arguing a point that is obviously wrong. Dropping an indubitavelmente can end the debate right then and there. If you are applying for a job in a corporate environment, this word can make your cover letter stand out as highly professional. It shows you have a rich vocabulary and a serious attitude.

When NOT To Use It

Avoid this word in a WhatsApp group with your childhood friends. You will sound like you accidentally swallowed a dictionary. Do not use it when you are actually unsure about something. If there is a 1% chance you are wrong, do not use the "I" word. It is too strong for "maybe" or "probably." Also, stay away from it in high-stress, fast-paced situations. If a building is on fire, do not shout, Indubitavelmente, precisamos sair!. Just run. Similarly, do not use it in very casual settings like a nightclub or a gym. It is a slow, multi-syllabic word that needs space to breathe.

Common Mistakes

Eu indubitavelmente vou talvez no shopping. Eu vou, talvez, ao shopping.

Confusion: Do not mix words of certainty with words of doubt like talvez.

É muito indubitavelmente legal. É, indubitavelmente, muito legal.

Placement: Avoid putting it between an adverb and an adjective; it breaks the flow.

Indubitavelmente? Com certeza!

Short answers: Using it as a one-word answer to a casual question feels awkward.

Indubitavel-mente (with a pause) Indubitavelmente (fluidly).

Pronunciation: Do not stumble over the six syllables. Practice it like a song.

Common Variations

If indubitavelmente feels too heavy, you have plenty of lighter options. Sem dúvida is the most common and versatile version. It works in 90% of situations, from casual to professional. Com toda a certeza is another great choice for when you want to be emphatic. In Portugal, you might hear decerto, which is also quite formal but shorter. If you want to sound academic but slightly less intense, try inevitavelmente (inevitably) if the context fits. For texting, just use ctz (short for certeza). It is the digital opposite of our six-syllable giant.

Real Conversations

B

Boss

Você acha que bateremos a meta este mês?
Y

You

Indubitavelmente, senhor. A equipe está muito focada.

Friend A: Essa série nova da Netflix é boa mesmo?

Friend B: Indubitavelmente! É a melhor coisa que assisti este ano.

T

Teacher

A Revolução Industrial mudou o mundo para sempre?
S

Student

Indubitavelmente, professor. Ela alterou toda a estrutura social.
I

Interviewer

Você se sente pronto para assumir este cargo?
C

Candidate

Indubitavelmente. Minha experiência anterior me preparou exatamente para isso.

Quick FAQ

Is it used in Brazil and Portugal? Yes, it is standard in both, though the accent changes. How do I pronounce it? In-du-bi-ta-vel-men-te. It is like a rhythm game for your tongue. Is it more common in writing? Yes, about 80% of its usage is in written formal texts. Can I use it to be funny? Yes, using formal words in casual settings is a classic Portuguese humor trope. Does it have a shorter version? Not really, but indubitável is the adjective form you can use. Is it a B2 level word? Absolutely, as it requires understanding of formal registers. How many syllables does it have? It has six syllables, making it a true linguistic workout.

Usage Notes

This is a high-register adverb primarily used in written formal Portuguese or serious speeches. While it is technically a synonym for 'com certeza', using it in a casual bar setting will make you sound humorous or overly academic. Always pair it with formal grammar to maintain a consistent linguistic persona.

🎯

Use sparingly

Don't overuse it.

Examples

10
#1 Job interview on Zoom
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Indubitavelmente, estou pronto para este desafio.

Undoubtedly, I am ready for this challenge.

Shows confidence and a high level of vocabulary to the interviewer.

#2 Formal email to a client
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Este é, indubitavelmente, o melhor investimento para sua empresa.

This is, undoubtedly, the best investment for your company.

Adds weight and authority to a business recommendation.

#3 Instagram caption for a sunset
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Indubitavelmente, a natureza é a melhor artista. 🌅

Undoubtedly, nature is the best artist.

A bit dramatic and poetic, perfect for a high-quality photo.

#4 Texting a friend about a show
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Essa temporada foi, indubitavelmente, a mais intensa!

This season was, undoubtedly, the most intense!

Using a big word for a simple opinion adds a fun, 'extra' vibe.

#5 Academic paper conclusion
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Os dados mostram que a mudança é, indubitavelmente, necessária.

The data shows that change is, undoubtedly, necessary.

Standard usage in scientific or academic writing to state a conclusion.

#6 Talking to a crush (ironic)
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Você é, indubitavelmente, a pessoa mais teimosa que eu conheço.

You are, undoubtedly, the most stubborn person I know.

The formality makes the 'insult' feel like a playful compliment.

#7 At a formal dinner
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

A hospitalidade de vocês foi indubitavelmente maravilhosa.

Your hospitality was undoubtedly wonderful.

A very elegant way to thank your hosts.

A learner making a mistake with certainty Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

✗ Eu indubitavelmente talvez vou à festa. → ✓ Eu vou, indubitavelmente, à festa.

✗ I undoubtedly maybe go to the party. → ✓ I am, undoubtedly, going to the party.

You cannot mix absolute certainty (indubitavelmente) with doubt (talvez).

A learner misplacing the word in a sentence Common Mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

✗ É uma indubitavelmente boa ideia. → ✓ É, indubitavelmente, uma boa ideia.

✗ It is an undoubtedly good idea. → ✓ It is, undoubtedly, a good idea.

In Portuguese, this adverb sounds much better when set off by commas or at the start.

#10 Reflecting on a life event
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

Aquele dia mudou minha vida indubitavelmente.

That day changed my life undoubtedly.

Placed at the end for a lingering sense of conviction.

Test Yourself

Fill in the blank.

A decisão foi ________ correta.

✓ Correct! ✗ Not quite. Correct answer: indubitavelmente

It fits the formal context.

🎉 Score: /1

Visual Learning Aids

Level of Certainty & Formality

Pode ser

Maybe/Low certainty

Pode ser que eu vá.

Com certeza

Everyday certainty

Eu vou com certeza!

Sem dúvida

Strong certainty

Ele é, sem dúvida, o melhor.

Indubitavelmente

Absolute/Formal certainty

É, indubitavelmente, a verdade.

Where to find Indubitavelmente

Usage Contexts
⚖️

Law Court

O réu é indubitavelmente inocente.

💻

Zoom Meeting

Indubitavelmente, atingiremos a meta.

🎓

Thesis Writing

A hipótese é indubitavelmente válida.

📱

Ironic Texting

Indubitavelmente, estou com preguiça.

🎤

Political Speech

Indubitavelmente, o país vai crescer.

Indubitavelmente vs. Friends

Formal (Writing)
Indubitavelmente Undoubtedly
Decerto Surely
Casual (Speaking)
Sem dúvida No doubt
Com certeza For sure

Grammar & Structure

📍

Position

  • Sentence Start
  • Mid-sentence (with commas)
  • Sentence End
🎭

Tone

  • Authoritative
  • Intellectual
  • Ironic

Practice Bank

1 exercises
Fill in the blank. Fill Blank B2

A decisão foi ________ correta.

✓ Correct! ✗ Not quite. Correct answer: indubitavelmente

It fits the formal context.

🎉 Score: /1

Frequently Asked Questions

1 questions

No, it is too formal.

Related Phrases

🔄

Sem dúvida

synonym

Without doubt

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