(p. 2) akathana bad or abusive language; obscene words. a. unspeakable; indescribable. 6)

(p. 2) akathya unspeakable, unutterable; obscene, filthy. ̃কথন utterance of undesirable or bad language; uttering foul or filthy language. 9)

(p. 30) anuccāraṇīẏa not proper to be pronounced; unutterable; unspeakable; inexplicable. 38)

(p. 53) abaktabya that which cannot or should not be uttered; unspeakable. 5)

(p. 53) abadya unspeakable, unutterable; unfit for utterance; disgraceful, base; (of words, expression etc.) in bad taste, vulgar. 35)

(p. 56) abācya unutterable, unspeakable; inexplicable; obscene, indecent. n. anything unutterable or unspeakable or inexplicable; obscene or indecent words; rude or vulgar speech. 58)

(p. 62) abyakta undisclosed, unexpressed; inexpressible; indistinct; unknown; unknowable; unspeakable; indescribable (অব্যক্ত বেদনা); unspoken; (phil.) latent. n. the Absolute Being, God; nature. ̃গণিত n. algebra. ̃পুষ্পক a. (bot.) cryptogamous, flowerless. n. a cryptogam. ̃রাশি n. unknown quantity. 28)

(p. 507) duruccāra, duruccārya difficult to pronounce or utter, break-jaw; obscene; unspeakable. দুরচ্চার শব্দ, দুরুচ্চার্য শব্দ a word hard to pronounce or utter, (sl.) a jawbreaker. 9)