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.

An "extremely intelligent" bear that injured four people in northern Japan remains at large as of Friday, after apparently unlatching a window while evading capture and turning on a water tap, officials said.

From Barron's • Jun. 5, 2026

He suggested that discovering intelligent life beyond Earth could force people to look beyond their differences.

From BBC • Jun. 4, 2026

CEO George Kurian said NetApp’s cloud intelligent data infrastructure platform was powering AI-driven transformations for its enterprise customers.

From Barron's • May 29, 2026

He agrees that tech should help to “relieve humans of arduous, repetitive or dangerous tasks” and “provide intelligent support,” but also warns of growing A.I.-induced inequality, which exacerbates poverty and forced migration.

From Slate • May 28, 2026

He was well-read and intelligent, but young and unproven.

From "Fallout: Spies, Superbombs, and the Ultimate Cold War Showdown" by Steve Sheinkin

Vocabulary lists containing intelligent

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