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.

Philadelphia-based PC wholesaler Intelligent Electronics then hired him as chief operating officer in its reseller division.

From The Wall Street Journal • Apr. 21, 2026

Intelligent, funny, curious and humble, Gosling’s Grace is essentially a clone of the character Matt Damon played in 2015’s “The Martian,” a geek you want to grab an intergalactic beer with.

From Los Angeles Times • Mar. 18, 2026

The e-signature company does have its own AI platform called Intelligent Agreement Management, or IAM.

From Barron's • Mar. 17, 2026

The study, published in the ACM journal Transactions on Interactive Intelligent Systems, also highlights a problem with how AI design tools are typically assessed.

From Science Daily • Mar. 15, 2026

Intelligent people are likelier than less intelligent ones to escape those causes of high mortality in traditional New Guinea societies.

From "Guns, Germs, and Steel: The Fates of Human Societies" by Jared M. Diamond

Vocabulary lists containing intelligent

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