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Definitions

functioning

[fuhngk-shuh-ning] / ˈfʌŋk ʃə nɪŋ /
ADJECTIVE
active
Synonyms
STRONGEST
functional working
STRONG
going operating operative running
WEAK
operational useful
Antonyms
STRONGEST
idle
NOUN
operation
Synonyms
STRONG
action activity behavior duty operating performance running task working
Antonyms
STRONG
idleness inactivity inertia

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In lipodystrophy, the body lacks enough properly functioning fat tissue.

From Science Daily • May 8, 2026

The Gulf monarchy’s only functioning oil-export hub was struck.

From The Wall Street Journal • May 7, 2026

Continuing that rate of return requires a functioning NIH.

From Barron's • May 5, 2026

“You lease a place, you expect everything to be functioning, including the elevator,” Walden says.

From MarketWatch • May 5, 2026

Had Galileo belonged to a functioning scientific community, to take just one example, he would have been firmly discouraged from placing his theory of the tides at the centre of his defence of Copernicanism.

From "The Invention of Science" by David Wootton

Vocabulary lists containing functioning

A Tangle of Knots

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