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Synonyms

observant

American  
[uhb-zur-vuhnt] / əbˈzɜr vənt /

adjective

  1. quick to notice or perceive; alert.

    Watch for traffic and stay observant as you walk, not lost in thought.

    Synonyms:
    perceptive
    Antonyms:
    slow, dull
  2. looking at, watching, or regarding attentively; watchful.

    Thousands of customers have been warned to be observant against a surge of scam letters claiming to be from the bank.

    Synonyms:
    aware, mindful, heedful, attentive
    Antonyms:
    heedless
    1. actively following or adhering to a particular religion.

      In Holland during the year surveyed, there were more observant Muslims than either observant Catholics or Protestants, but not all Christians combined.

    2. careful in following or adhering to a particular law, custom, religious ritual, or the like (often used with of orto ).

      He is well-versed in Jewish law, and observant of its commandments.

    Synonyms:
    obedient

noun

  1. a person who follows or adheres to a particular law, custom, religion, etc.

  2. Observant. Also Observantine a member of a Franciscan order that follows the strict rule of St. Francis.

observant British  
/ əbˈzɜːvənt /

adjective

  1. paying close attention to detail; watchful or heedful

  2. adhering strictly to rituals, ceremonies, laws, etc

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of observant

First recorded in 1425–75; late Middle English, from French, present participle of observer “to notice, observe, watch”; see observe

Explanation

If you're observant, you’re paying close attention to the details. If you're really observant, you would notice the little blob of mustard on your boss's jacket and brush it off for him before he goes to his business dinner. Your mother may be so observant that she notices every bit of dust you miss when you vacuum. But if you're so observant that you notice every coin on the sidewalk, you might soon have enough money saved to buy your mom a robo-vac. Observant can also mean that you're careful to follow laws and customs to the letter. If you’re an observant Jew or an observant Catholic, you’re following your religion’s rituals and practices very strictly.

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Vocabulary lists containing observant

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.

See Examples For:

Some cosmetics, medicines and supplements contain gelatin, animal fats, alcohol or other ingredients whose origins matter to observant consumers.

From MarketWatch Aug. 12, 2026

I’m observant and see the single-sized portions of what they order.

From Los Angeles Times Jul. 24, 2026

"An observant Lancashire Constabulary officer recognised Jumaa and acted swiftly to arrest him," Detective Supt Nicola McCulloch said in a statement.

From BBC Jul. 17, 2026

These legislators were also more likely to be white, to have served in the military and to be religiously observant.

From Salon Jul. 8, 2026

“Now that I’m thinking of it, I think that was the real test. He wanted to see how observant I was.”

From "The Name of the Wind" by Patrick Rothfuss

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