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Synonyms

unaccustomed

American  
[uhn-uh-kuhs-tuhmd] / ˌʌn əˈkʌs təmd /

adjective

  1. not accustomed or habituated.

    to be unaccustomed to hardships.

  2. unusual; unfamiliar.

    A brief after-dinner speech is an unaccustomed pleasure.

    Synonyms:
    unexpected, peculiar, curious, extraordinary, uncommon

unaccustomed British  
/ ˌʌnəˈkʌstəmd /

adjective

  1. (foll by to) not used (to)

    unaccustomed to pain

  2. not familiar; strange or unusual

"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 unaccustomed

First recorded in 1520–30; un- 1 + accustomed


Explanation

If you're unaccustomed to something, you're not used to it. When you're unaccustomed to riding a horse, it might take a while to get the hang of staying in the saddle. An unaccustomed knock on the door might startle you and make your dog bark in alarm, and an unaccustomed bonus in your paycheck will come as a happy surprise. You might feel awkward having tea with a princess in a palace if you're unaccustomed to fine dining and dignified table manners. The prefix un here means "not," and it's combined with accustom, with its ultimate Latin root word consuetudinem, "habit, usage, practice, or custom."

Keep Reading on Vocabulary.com

Vocabulary lists containing unaccustomed

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:

One of the most impressive things about “Point Blank” is that the up-and-coming Mr. Boorman made the film with an old-time crew largely unaccustomed to his innovative ways who nonetheless rose to the occasion.

From The Wall Street Journal ● Apr. 15, 2026

Daidai posted that drivers coming into the area should be careful on the roads, especially those from the city unaccustomed to conditions in the countryside.

From BBC ● Jan. 15, 2026

In among Liverpool's strife, Szoboszlai has been one of the better performers - but yet again he was pushed into an unaccustomed right-back role against Forest.

From BBC ● Nov. 25, 2025

The 109% premium over Thursday’s closing price, and the nearly 1,000% premium over Cidara’s share price five months ago, are additional positive signs for biotech, which has been on an unaccustomed run this fall.

From Barron's ● Nov. 14, 2025

The fabric is raspy against my skin, so unaccustomed lately to being touched.

From "The Handmaid's Tale" by Margaret Atwood

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