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.

The Fukushima mayor said officials also saw the bear drinking water from a tap, adding it may have turned the handle itself, and describing it as being "extremely intelligent."

From BBC • Jun. 9, 2026

Mr Justice Kinney said Natalie knew what she wanted from life and was "intelligent, passionate and funny".

From BBC • Jun. 3, 2026

BYD also said it aims to invest more than 100 billion yuan, equivalent to $14.75 billion, in intelligent technology research and development over the next three years.

From The Wall Street Journal • May 29, 2026

"The aim is to have the most intelligent systems possible so that afterwards, with the necessary adaptations, they'll have the greatest possible impact on businessses," Mensch said.

From Barron's • May 28, 2026

"He was intelligent, spellbinding. I knew in my bones that here was an opportunity to do some work. I needed only some kind of pretext to make contact with him."

From "Spies: The Secret Showdown Between America and Russia" by Marc Favreau

Vocabulary lists containing intelligent

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List 5

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