wet blanket

• Человек, который портит веселье или энтузиазм других, будучи пессимистичным, скучным или чрезмерно осторожным, часто подавляя настроение на общественном мероприятии или во время активности.

A person who spoils the fun or enthusiasm of others by being pessimistic, dull, or overly cautious, often dampening the mood of a social gathering or activity.

1. Spoilsport or killjoyB2informal

   A person who spoils the fun or enthusiasm of others, often by being negative or overly cautious.

   Зануда

   • Don't be such a wet blanket at the party.
   • He was a wet blanket during the whole trip, complaining about everything.
   • She threw a wet blanket on our plans by pointing out all the risks.