(p. 2) akarmaṇya disabled; inefficient; not in working order, unserviceable. ̃তা n. incompetence, inefficiency; uselessness. 21)

(p. 41) apadārtha worthless, useless; trashy; incompetent, unfit; good-for-nothing. ̃তা n. worthlessness; incompetence; uselessness. 74)

(p. 51) apraẏōjana needlessness, absence of necessity. অপ্রয়োজনীয় a. unnecessary, needless; redundant, superfluous; useless. অপ্রয়োজনীয়তা n. unnecessariness, needlessness; uselessness; redundance, superfluity. 38)

(p. 63) abyabahārya not fit to be used; out of order; useless; inapplicable; out of use; unused; unuseful; unserviceable. ̃তা n. uselessness. 6)

(p. 761) biphala fruitless, unsuccessful, vain, futile, abortive, unavailing, inefficacious, ineffective; useless. বিফল করা v. to baffle, to foil, to frustrate. বিফল হওয়া v. to abort, to be of no avail; to be foiled; to become unsuccessful, to fail. বিফলতা n. failure, futility, fruitlessness; uselessness. ̃প্রযত্ন a. failed in one's attempt, baffled. বিফলীকরণ n. baffling or foiling. বিফলীকৃত a. baffled, foiled. বিফলীভূত a. baffled, foiled, frustrated. বিফলে adv. in vain; in case of failure. 77)