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Definition of decaf

decaf

/ˈdiː.kæf/
de · caf
Plural:decafs
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decaf Lexical Profile

decaf Game Scores & Validity

• adjective

1

Having had most or all of its caffeine removed; decaffeinated.

Example

"Please make sure to brew a pot of decaf coffee for the guests who do not want to stay awake all night."

Synonyms
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Antonyms
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• noun

1

Coffee or tea from which most or all of the caffeine has been removed, or a serving of such a beverage.

Example

"She switched to drinking decaf in the afternoons so that she could sleep better at night."

• Nearby Words

decadence
decadent
decadently
decaf
decaffeinate
decaffeinated
decaffeination

Word Origin & Etymology

Coined in the mid-20th century as an informal clipping of "decaffeinated," which itself combines the prefix de- (meaning "removal") with caffeine.

Cite this Entry

Wordmom. (2026). Definition of Decaf. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/decaf
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