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 brain somehow makes us intelligent," Kerstjens says.

From Science Daily • Jun. 25, 2026

Through the Fathom purchase and other acquisitions, “we believe these capabilities will operate seamlessly within neighborhoods across the country, enabling us to serve homeowners in more intelligent, connected and meaningful ways.”

From Barron's • Jun. 17, 2026

Houdon’s Franklin, though clearly an old man, looks amused and engaged, with a youthful gaze, but also highly intelligent and judicious, sociable but not entirely available, a bit enigmatic.

From The Wall Street Journal • Jun. 12, 2026

Another "extremely intelligent" bear filmed chasing people in Fukushima is still evading officials, as Japan deals with a rise in bear encounters.

From BBC • Jun. 9, 2026

“She’s a very intelligent pig,” Eilonwy went on.

From "The Book of Three" by Lloyd Alexander

Vocabulary lists containing intelligent

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