É imperioso mencionar a circunstância de que

Using this phrase is like steering a large ship—it takes a bit of space and shouldn't be done suddenly. You typically place it at the start of a paragraph or after a comma when you are shifting the focus to a specific, critical detail. It is almost always followed by a full clause starting with que. For example, if you are in a meeting, you might say, É imperioso mencionar a circunstância de que o orçamento já foi excedido. You are pointing out the elephant in the room with maximum class. Think of it as a formal 'By the way' that graduated from Harvard Law. Just remember to keep your tone steady and serious when you say it, or the weight of the words might feel a bit silly.

This is as formal as Portuguese gets. On a scale from 'WhatsApping your best friend' to 'Writing a constitutional amendment,' this is hovering near the top. You will rarely, if ever, hear this in a casual café or during a Netflix binge-watch, unless the character is a very stuffy lawyer. It belongs in the 'very_formal' register. If you use this in a group chat about where to order pizza, your friends will probably ask if you’ve been hacked by a 19th-century poet. It is perfect for LinkedIn articles, cover letters, academic essays, and professional rebuttals where you need to sound incredibly competent and firm. It’s the linguistic equivalent of a perfectly tailored suit—it makes you look great, but it’s not for the beach.

Imagine you are writing a formal complaint to an airline because they lost your luggage for the third time this year. You wouldn't just say 'You lost my bags.' You would write, É imperioso mencionar a circunstância de que esta é a terceira ocorrência em menos de seis meses. That sounds like you’re ready to take them to court! Or, think about a LinkedIn post discussing market trends. You might write, É imperioso mencionar a circunstância de que o comportamento do consumidor mudou drasticamente após a pandemia. It gives your insight a layer of professional gravity that simple words just can't match. It’s also great for Zoom calls when someone is ignoring a key fact. A quick É imperioso mencionar a circunstância de que... will stop the chatter and refocus the group immediately.

Use this when the stakes are high. It is perfect for situations where accuracy and authority are paramount. If you are defending a thesis, writing a legal document, or sending a high-level corporate report, this is your best friend. It is also useful when you want to be politely but firmly assertive. It allows you to point out a mistake or a missing fact without sounding aggressive, because the phrase itself is so dignified. It’s the 'professional' way to say 'Hey, you forgot something really important!' It’s also a fun way to be ironic with friends who know you well—using such a heavy phrase for something trivial like 'I forgot my charger' is a classic bit of linguistic humor.

Do not use this with your Uber driver, your barista, or your Tinder date. Unless you want to come across as a robot or a time-traveler from the 1800s, keep it away from daily errands. It is also too heavy for casual workplace 'slacks' or quick check-ins. If you use it too often in the same document, it starts to lose its power and can make your writing feel 'clunky' or 'baroque.' It’s like truffle oil—a little bit goes a long way, and too much ruins the dish. Avoid it if the 'circumstance' you are mentioning isn't actually that important. If the fact is minor, using this phrase makes it look like you don't understand the difference between a detail and a crisis.

One of the most frequent stumbles for learners is forgetting the de. People often say a circunstância que, but the correct grammatical structure requires a circunstância de que. It’s a tiny word, but it makes a world of difference to a native ear. Another mistake is using it as a question. You don't really ask, É imperioso mencionar...?. It’s a statement of fact. Also, watch out for the pronunciation of imperioso. The 'o' at the end is soft, almost like a 'u.' Don't hit it too hard like a Spanish 'o.' Finally, don't mix it with slang. Saying É imperioso mencionar a circunstância de que o rolê foi paia (It's imperative to mention that the hangout was lame) is a clash of styles that will make people's heads spin—though it is admittedly pretty funny.

If you find this phrase a bit too long, you can use Cabe ressaltar que (It’s worth highlighting that) or É fundamental destacar que (It’s fundamental to highlight that). These are still formal but a bit more modern and agile. In Portugal, you might hear Importa referir que, which is very common in news broadcasts and official speeches. If you want to sound even more legalistic, you could try Cumpre salientar que. On the flip side, if you need to bring it down a notch for a regular business email, Gostaria de lembrar que (I’d like to remind you that) works perfectly. It’s like choosing between a tuxedo, a blazer, and a nice sweater—pick the one that fits the room.

Is this phrase common in Brazil? Yes, but only in very formal writing like law, medicine, or academia. Does it sound old-fashioned? A little, but in a 'respected professional' way, not a 'grandpa' way. Can I use it in an email? Only if the email is formal and sent to someone you don't know well or a superior. Is the de mandatory? Yes, grammarians will judge you if you leave it out! Why not just say é importante? Because imperioso implies a level of urgency and 'must-ness' that importante just doesn't capture. It’s the difference between 'good to know' and 'need to know right now.'