Part of speech: Adjective
not habituated to; unfamiliar with
Example: unaccustomed to wearing suits
Part of speech: Adjective
not customary or usual
Example: an unaccustomed pleasure; many varieties of unaccustomed foods; a new budget of unaccustomed austerity
un – A related word in the same word family.
accustomed – A related word in the same word family.
Language families split when populations migrated, carrying their vocabulary to new lands.