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Definitions

observant

[uhb-zur-vuhnt] / əbˈzɜr vənt /
ADJECTIVE
alert, watchful
Synonyms
STRONGEST
attentive discerning discriminating intelligent mindful perceptive vigilant
WEAK
advertent alive bright clear-sighted comprehending considering contemplating correct deducing detecting discovering eager eagle-eyed heedful intentive interested keen not missing a trick obedient observative on one's toes on the ball penetrating questioning quick regardful searching sensitive sharp sharp-eyed surveying understanding wide-awake
Antonyms
STRONGEST
careless heedless inattentive neglectful negligent unaware undiscriminating
WEAK
indifferent thoughtless unmindful unobservant unwatchful

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.

"Ravens are so observant of the landscape that they don't step into traps easily," says Loretto.

From Science Daily • Mar. 19, 2026

The international research team attached tiny GPS trackers to 69 ravens -- an impressive number considering the painstaking work in trapping the particularly observant birds.

From Barron's • Mar. 12, 2026

Blunt, who previously described Dame Jilly as "emotionally intelligent, fantastically generous, sharply observant and utter fun", carried a tote bag with "I love Jilly Cooper" on it.

From BBC • Jan. 30, 2026

So I just became like really quietly observant.

From Los Angeles Times • Jan. 8, 2026

I had the same four qualities as any great scientist: I was patient, curious, observant, and persistent.

From "Sir Fig Newton and the Science of Persistence" by Sonja Thomas

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.