Home › Words › U › undatableundatableundatable means not able to be dated; that may be not be ascribed a date (or age).EtymologyFrom un- + datable.adjNot able to be dated; that may be not be ascribed a date (or age).Not dateable; unsuitable for romantic outings; unattractive.nounA person who is unsuitable to be dated, or taken on a romantic outing.Definitions & examples from Wiktionary (CC BY-SA 3.0).