wet blanket

Definitions

A person who spoils other people's enjoyment or discourages enthusiasm.

Something that has a depressing or dampening effect on a situation or event.

Examples

I hate to be a wet blanket, but I think we should start heading home before the storm hits.

Don't be such a wet blanket; everyone else is having a great time at the party.

His constant complaining about the budget acted as a wet blanket on our team's enthusiasm for the new project.

Synonyms

killjoy party pooper spoilsport dampener grouch pessimist cynic

Antonyms

life of the party socialite optimist cheerleader enthusiast spark entertainer