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Definitions

unaccustomed

[uhn-uh-kuhs-tuhmd] / ˌʌn əˈkʌs təmd /
ADJECTIVE
not prepared, ready; new
Synonyms
STRONGEST
ignorant uninformed
WEAK
incompetent inexperienced newcome not given to not used to novice too green unacquainted unfamiliar with uninstructed unpracticed unseasoned unskilled untaught untrained unused to unversed in
Antonyms
WEAK
accustomed customary normal prepared ready usual
ADJECTIVE
new, strange
Synonyms
STRONGEST
unfamiliar
WEAK
alien altered bizarre different eccentric exceptional exotic foreign imported novel out of the ordinary outlandish quaint remarkable singular special surprising uncommon unconventional uncustomary unexpected unknown unorthodox unprecedented unusual unwonted variant
Antonyms
WEAK
accustomed customary normal prepared ready usual

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.

Breuer’s evangelizing has made him an important public figure in a country unaccustomed to seeing and hearing from men in uniform.

From The Wall Street Journal • Feb. 12, 2026

NWS meteorologist Allison Santorelli told AFP the agency was seeing widespread reports of significant ice accumulation, including in places unaccustomed to severe winter weather.

From Barron's • Jan. 26, 2026

He deploys a funky delivery that ends with him throwing the ball from high above his head, an arm slot opposing batters are unaccustomed to facing.

From The Wall Street Journal • Oct. 30, 2025

His memory lapse hasn’t made folks meaner — it’s just made Paul unaccustomed to the hassle.

From Los Angeles Times • Mar. 12, 2025

They jumped, unaccustomed to sudden bursts of light.

From "Gregor the Overlander" by Suzanne Collins

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