unaccustomed to

1. 1.

   not habituated to; unfamiliar with

   “unaccustomed to wearing suits”

   Antonymsaccustomed to

   Similarnewunused to

Questions about unaccustomed to

What does unaccustomed to mean?

unaccustomed to means "not habituated to; unfamiliar with".

What is the opposite of unaccustomed to?

The recorded antonyms are accustomed to.

Is unaccustomed to a common word?

unaccustomed to is banded "Rare" — specialist or archaic — most readers will not have met it. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.