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.

Technosignatures may be more convincing, but they depend on assumptions about how intelligent life might behave, which adds uncertainty.

From Science Daily • Apr. 15, 2026

“There’s no letter accompanying anyone’s name. ... I personally support him because he’s an intelligent alternative.”

From Los Angeles Times • Apr. 10, 2026

My best guess is that Cassidy and Kaine themselves — being the intelligent and diligent legislators they are — would prefer a serious approach and offer this proposal simply to move their colleagues to action.

From MarketWatch • Apr. 9, 2026

Garbage in, garbage out remains the eternal problem calling for intelligent human prioritization of computing tasks.

From The Wall Street Journal • Mar. 29, 2026

Campbell described Isaac as “rather tall, of strong frame, stoops a little, in color ebony; sensible, intelligent, pleasant.”

From "In the Shadow of Liberty" by Kenneth C. Davis

Vocabulary lists containing intelligent

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