(p. 90) asāra unsubstantial, vapoury; negligible; worthless; false; pithless, marrowless, sapless (অসার কাঠ); futile, pointless (অসার যুক্তি). ̃তা, ̃ত্ব n. unsubstantiality; vaporiness; negligibility; worthlessness; falseness, falsity; lack of pith or marrow or sap; futility; pointlessness. অসার সংসার the inane and unmeaning world, the insubstantial world. 2)

(p. 114) ānartha, ānarthya, ānarthakya futility; ineffectualness. 14)

(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)

(p. 794) byartha futile, abortive, unavailing, vain; useless; unsuccessful. ব্যর্থ করা v. to baffle, to foil. ব্যর্থ হওয়া v. to abort, to be of no avail; to be foiled; to fail. ̃তা n. futility, failure. ̃কাম a. foiled, baffled, frustrated, unsuccessful, of one who has failed to achieve the desired object. ব্যর্থ চেষ্টা n. futile or abortive attempt; unsuccessful attempt. ̃মনোরথ a. foiled or baffled; frustrated; unable or unsuccessful to fulfil one's object. 47)