Added 10 October 2026 unobserved adjective Categories: Describing WordsRare Words In Latin: inobservātus Wiktionary adjective ! Definition from WordNet 3.1, Princeton University. More about unobserved at Wordnik → Where our words come from → Not seen or observed. managed to slip away unobserved Related Words: unwitnessedunnoticedundetectedunseenuncontrolledunsupervisedunobservablelatentdormantsmoulderingnonobservedunperceived Back to today's word