imenso prazer

You can use it as a standalone response or within a full sentence. Most people use it when meeting someone for the first time. You can also use it to accept an invitation. It fits perfectly at the start or end of a conversation. Just drop it in where you would normally say 'nice to meet you' or 'my pleasure'.

Use it when you want to sound polite and sophisticated. It is perfect for professional networking events. It works beautifully when being introduced to your partner's parents. Use it in emails to show enthusiasm for a new project. It is also great at dinner parties when the host offers you more wine. You will sound like a local who has mastered social graces.

Avoid using it for very trivial, mundane things. Do not say it when someone hands you a napkin at a fast-food joint. It might sound a bit sarcastic or overly dramatic there. Also, avoid it in very 'street' or slang-heavy conversations with teenagers. They might think you are acting like a university professor. Keep it for moments that actually deserve a bit of 'immense' energy.

Portuguese culture places a high value on hospitality and politeness. Being 'educado' (polite/well-bred) is a major social asset. Imenso prazer reflects this desire to make others feel truly welcomed. It is a classic expression that hasn't aged. It bridges the gap between the old-world charm of Lisbon and modern business in São Paulo.

You might hear um grande prazer which is slightly more common in casual talk. In Portugal, people often say é um enorme prazer. If you want to be extra fancy, try um imenso gosto. All of these carry the same 'big happy' energy. Just pick the one that feels most natural in your mouth.