WordReference Random House Learner's Dictionary of American English © 2026
un•ac•cus•tomed /ˌʌnəˈkʌstəmd/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- not used to:unaccustomed to hardships.
- uncommon;
unexpected:an unaccustomed delay.
un•ac•cus•tomed
(un′ə kus′təmd),USA pronunciation adj.
un′ac•cus′tomed•ness, n.
- not accustomed or habituated:to be unaccustomed to hardships.
- unusual;
unfamiliar:A brief after-dinner speech is an unaccustomed pleasure.
- un-1 + accustomed 1520–30
- 2.See corresponding entry in Unabridged . uncommon, extraordinary, curious, peculiar, unexpected.
'unaccustomed' also found in these entries (note: many are not synonyms or translations):
arriviste
- burlesque
- habitual
- new
- strange
- stranger
- travelers' diarrhea
- unfamiliar
- unwonted
- wont