Added 9 October 2026 unobtainable adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about unobtainable at Wordnik → Where our words come from → Not capable of being obtained. a rare work, today almost inaccessible Related Words: unprocurableuntouchableinaccessibleunavailableunreachableunattainableunachievableimpossibleuntraceableimpracticableunfeasibleinfeasible Back to today's word