Added 9 October 2026 unscheduled adjective Categories: Describing WordsRare Words adjective ! Definition from Wiktionary (CC BY-SA). More about unscheduled at Wordnik → Where our words come from → Not scheduled; impromptu. Not scheduled in the political sense. Related Words: specialextraemergencyforcedunexpectedcasualcontingencyrandomoccasionalunpredictableindefiniteirregular Back to today's word