#1
unutterable s. [
ineffable, unnameable, unspeakable] too sacred to be uttered; "the ineffable name of the Deity"
. wn #2
unutterable s. [
indefinable, indescribable, ineffable, unspeakable, untellable] defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor"
. wn #3
unutterable s. [
unpronounceable] very difficult to pronounce correctly; "an unpronounceable foreign word"; "unutterable consonant clusters"
. wn