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.

As governments and companies pour billions of dollars into the pursuit of AI general intelligence, as a society we should ask ourselves what it means to be intelligent.

From The Wall Street Journal • May 26, 2026

The rise of AI tools that instantly answer questions and complex problems could make humans less intelligent, the Royal Observatory Greenwich has warned.

From BBC • May 18, 2026

She doesn’t mean to be, she doesn’t take herself too seriously, but she happens to be very intelligent, so that combination of those two things makes her just appealing.

From Los Angeles Times • May 18, 2026

He’s clearly an old soul, keenly intelligent, cheeky and sensitive.

From Salon • May 15, 2026

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

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

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