Added 10 October 2026 surmisable adjective Categories: Describing WordsObscure Words adjective ! Definition from WordNet 3.1, Princeton University. More about surmisable at Wordnik → Where our words come from → Capable of being inferred on slight grounds. Origin From surmise + -able. From Wiktionary, via Kaikki.org (CC BY-SA) Related Words: presumablesupposablethinkableguessablesurmisantconjecturableconceptiblesurprisableconceivableprehendableprehensiblecognoscible Back to today's word