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.

Emily Blunt and Josh O’Connor race around the Midwest trying to expose UFOs in a hectic adventure that lacks intelligent life.

From Los Angeles Times • Jun. 11, 2026

He might be 74, but he is an intelligent mood-setter with a big football brain and a fantastic capacity to connect with footballers and make them feel better and play better.

From BBC • Jun. 11, 2026

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

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

From BBC • Jun. 4, 2026

“He’s obviously the most intelligent and handsome hamster you have.”

From "The World According to Humphrey" by Betty G. Birney

Vocabulary lists containing intelligent

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List 5

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