- not accustomed or habituated; not used (to): unaccustomed to such kindness
- not usual; strange: an unaccustomed action
See unaccustomed in American Heritage Dictionary 4
- Not common or usual: “The legislature has produced a new budget of unaccustomed austerity” (People).
- Not being habituated. Used with to: is still unaccustomed to a life of stress.
- unˌac·cusˈtomed·ly adverb
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