definition of
unspeakable

[1] #1 unspeakable s. [indefinable, indescribable, ineffable, untellable, unutterable] defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor". wn

[2] #2 unspeakable s. [atrocious, abominable, awful, dreadful, painful, terrible] exceptionally bad or displeasing; "atrocious taste"; "abominable workmanship"; "an awful voice"; "dreadful manners"; "a painful performance"; "terrible handwriting"; "an unspeakable odor came sweeping into the room". wn

[3] #3 unspeakable s. [ineffable, unnameable, unutterable] too sacred to be uttered; "the ineffable name of the Deity". wn