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noun

killjoy

KIHL-joy

Killjoy (noun) means someone who spoils other people's fun or enjoyment. Example: “Don't be such a killjoy — let them have their fun.”

noun
1
Someone who spoils other people's fun or enjoyment.
"Don't be such a killjoy — let them have their fun."

How to use killjoy

Learner’s notes

In plain EnglishA person who ruins the mood or stops others from enjoying themselves.

Easily confused with
Common pairings
such a killjoy don't be a killjoy

Word forms

killjoys plural

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Don't be such a _____ — let them have their fun.

Etymology

A straightforward compound of "kill" + "joy," first recorded in the late 18th century.

· First attested 1700

Class of 1700 killjoy joined the language around 1700.
See the full Class of 1700 →
spoilsport wet blanket party pooper

Related words

Rhymes for killjoy

See all rhymes for killjoy →

Frequently asked questions

What does “killjoy” mean?

The word “killjoy” means someone who spoils other people's fun or enjoyment. In plain terms, a person who ruins the mood or stops others from enjoying themselves.

How do you pronounce “killjoy”?

“Killjoy” is pronounced KIHL-joy (/ˈkɪlˌd͡ʒɔɪ/ in IPA).

How do you use “killjoy” in a sentence?

Here is “killjoy” used in a sentence: “Don't be such a killjoy — let them have their fun.”

What part of speech is “killjoy”?

“Killjoy” is a noun.

Where does the word “killjoy” come from?

The word “killjoy” dates back to around 1700. A straightforward compound of "kill" + "joy," first recorded in the late 18th century.

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Definitions: FreeDict original editorial