Added 9 October 2026 mystifying adjective Categories: Describing WordsRare Words adjective ! Definition from WordNet 3.1, Princeton University. More about mystifying at Wordnik → Where our words come from → Of an obscure nature. the new insurance policy is written without cryptic or mysterious terms Related Words: crypticalcrypticinscrutablemysteriousincomprehensibleinexplicabledeepbafflingbewilderingabstrusebrain-bendingperplexing Back to today's word