unutterable :: Lexipedia - Where words have meaning

adj. very difficult to pronounce correctly; "an unpronounceable foreign word"; "unutterable consonant clusters"

adj. too sacred to be uttered; "the ineffable name of the Deity"

indefinable, indescribable, ineffable, unspeakable, untellable

adj. defying expression or description; "indefinable yearnings"; "indescribable beauty"; "ineffable ecstasy"; "inexpressible anguish"; "unspeakable happiness"; "unutterable contempt"; "a thing of untellable splendor"

out, taboo, tabu, prohibited, forbidden, proscribed

adj. excluded from use or mention; "forbidden fruit"; "in our house dancing and playing cards were out"; "a taboo subject"

unknown, nameless, unidentified, unnamed

adj. being or having an unknown or unnamed source; "a poem by an unknown author"; "corporations responsible to nameless owners"; "an unnamed donor"

blank

adj. void of expression; "a blank stare"

close, closemouthed, secretive, tightlipped, close-lipped

adj. inclined to secrecy or reticence about divulging information; "although they knew her whereabouts her friends kept close about it"

deadpan, expressionless, impassive, poker-faced, unexpressive

adj. deliberately impassive in manner; "deadpan humor"; "his face remained expressionless as the verdict was read"

guarded, noncommittal, unrevealing

adj. refusing to bind oneself to a particular course of action or view or the like; "her boyfriend was noncommittal about their future together"

incommunicado

adj. without the means or right to communicate; "a prisoner held incommunicado"; "incommunicado political detainees"

mum, silent

adj. failing to speak or communicate etc when expected to; "the witness remained silent"

divine

adj. devoted to or in the service or worship of a deity; "divine worship"; "divine liturgy"

inspirational

adj. imparting a divine influence on the mind and soul

inviolable, inviolate, sacrosanct

adj. must be kept sacred

numinous

adj. evincing the presence of a deity; "a numinous wood"; "the most numinous moment in the Mass"

spiritual, religious

adj. concerned with sacred matters or religion or the church; "religious texts"; "a member of a religious order"; "lords temporal and spiritual"; "spiritual leaders"; "spiritual songs"

reverend, sublime, revered, reverenced, venerated

adj. worthy of adoration or reverence

taboo, tabu

adj. forbidden to profane use especially in South Pacific islands

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