Definitions

intelligent

[in-tel-i-juhnt] / ɪnˈtɛl ɪ dʒənt /

ADJECTIVE

very smart

Synonyms

STRONGEST

astute brainy bright brilliant creative imaginative inventive knowledgeable original perceptive rational resourceful smart well-informed wise

WEAK

able acute alert alive all there apt calculating capable clever comprehending deep discerning enlightened exceptional highbrow ingenious instructed keen knowing penetrating perspicacious profound quick quick-witted ready reasonable responsible sage sharp thinking together understanding whiz witty

Antonyms

STRONGEST

dark dull ignorant normal old stupid typical unaware uncreative uneducated unimaginative unintelligent uninventive unreasonable unresourceful worn

WEAK

foolish idiotic imbecile

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.

Emily Blunt and Josh O’Connor race around the Midwest trying to expose UFOs in a hectic adventure that lacks intelligent life.

From Los Angeles Times • Jun. 11, 2026

Another "extremely intelligent" bear filmed chasing people in Fukushima is still evading officials, as Japan deals with a rise in bear encounters.

From BBC • Jun. 9, 2026

Mr Justice Kinney said Natalie knew what she wanted from life and was "intelligent, passionate and funny".

From BBC • Jun. 3, 2026

But despite Nvidia boss Jensen Huang's assertion that homes will soon contain AI supercomputers, the race is still on to develop an ubiquitous, one-size-fits-all intelligent device.

From Barron's • Jun. 1, 2026

If guinea fowl had been slightly more intelligent, it wouldn’t have worked, but fortunately they were as dull-witted as earthworms.

From "A Girl Named Disaster" by Nancy Farmer

Vocabulary lists containing intelligent

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