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.

It is also believed the bear "turned on the water tap" to drink, he added, describing it as "extremely intelligent".

From Barron's • Jun. 5, 2026

On Tuesday, a psychological expert testified that the defendant displayed no evidence of a psychotic disorder, that he was intelligent, "controls what he says" and shows "few emotions".

From Barron's • Jun. 4, 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

Dr Ben King, who was Redfearn's tutor for five years, said he had been "highly intelligent", and a "lovely lad" who "everyone admired".

From BBC • May 23, 2026

Hadn’t all the intelligent animals been put to death in the Black Forest decades ago?

From "Half Upon a Time" by James Riley

Vocabulary lists containing intelligent

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