adjective
being beyond human power to tell or describe
unutterable spiritual bliss
Synonyms: incommunicable, indefinable, indescribable, ineffable, inenarrable, inexpressible, undescribable, unexpressible, unspeakable, untellable
Related Word: inconceivable, incredible, unbelievable, unimaginable; awesome, awful, marvelous, prodigious, wonderful, wondrous
Idioms: beyond expression
Contrasted words: commonplace, humdrum, ordinary; monotonous, samely, unvarying