Added 10 October 2026 unnoticeable adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about unnoticeable at Wordnik → Where our words come from → Not noticeable; not drawing attention. her clothes were simple and unnoticeable Not drawing attention. an unnoticeable cigarette burn on the carpet Related Words: unassertiveinconspicuousinvisibleundistinguishedunobtrusiveinsignificantobscureretiringunnoticednonperceptibleinappreciableindetectable Back to today's word