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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | useless |
| Synonyms: | abortive, anticlimactic, barren, bootless, defeasible, emasculate, feckless, feeble, forceless, fruitless, futile, idle, impotent, inadequate, incompetent, indecisive, ineffectual, inefficacious, inefficient, inept, inferior, innocuous, inoperative, lame, limited, neutralized, no go, no way, not effective, nugatory, null, paltry, powerless, slack-spined, spineless, unable, unavailable, unavailing, unfruitful, unproductive, unprofitable, unsuccessful, vain, void, withered, worthless |
| Notes: | ineffectual refers to a general or habitual lack of success in the carrying out of one's projects; ineffective refers to a specific or definite failure to perform a task or accomplish a purpose |
| Antonyms: | effective |
| Main Entry: | feckless |
| Part of Speech: | adjective |
| Definition: | without purpose |
| Synonyms: | aimless, carefree, careless, feeble, fustian, futile, good-for-nothing, hopeless, incautious, incompetent, ineffective, ineffectual, irresponsible, meaningless, reckless, shiftless, uncareful, useless, weak, wild, worthless |
| Notes: | feckless means ineffective or having no real worth or purpose; reckless means marked by unthinking boldness or with defiant disregard for danger or consequences |
| Antonyms: | competent, effective, effectual, efficient, purposeful, responsible, strong, useful |
| Main Entry: | fruitless |
| Part of Speech: | adjective |
| Definition: | bringing no advantage, product |
| Synonyms: | abortive, barren, empty, futile, gainless, idle, in vain, ineffective, ineffectual, infertile, pointless, profitless, spinning one's wheels, sterile, to no avail, to no effect, unavailable, unavailing, unfruitful, unproductive, unprofitable, unprolific, unsuccessful, useless, vain, wild goose chase |
| Antonyms: | copious, fruitful, plentiful, potent, productive, profitable, successful, useful |
| Main Entry: | futile |
| Part of Speech: | adjective |
| Definition: | hopeless, pointless |
| Synonyms: | abortive, barren, bootless, delusive, empty, exhausted, forlorn, fruitless, hollow, idle, impracticable, impractical, in vain, ineffective, ineffectual, insufficient, no dice, nugatory, on a treadmill, otiose, out the window, profitless, resultless, save one's breath, sterile, to no avail, to no effect, to no purpose, trifling, trivial, unavailing, unimportant, unneeded, unproductive, unprofitable, unreal, unsatisfactory, unsubstantial, unsuccessful, useless, vain, valueless, worthless |
| Antonyms: | fruitful, hopeful, productive, profitable |
| Main Entry: | impotent |
| Part of Speech: | adjective |
| Definition: | disabled; unable to perform action |
| Synonyms: | barren, crippled, dud, effete, enervated, enfeebled, feeble, forceless, frail, gutless, helpless, inadequate, incapable, incapacitated, incompetent, ineffective, ineffectual, inept, infecund, infirm, nerveless, paper tiger, paralyzed, powerless, prostrate, sterile, unfruitful, unproductive, weak |
| Antonyms: | able, capable, fertile, potent, productive, strong |
| Main Entry: | incapable |
| Part of Speech: | adjective |
| Definition: | not adequate; helpless |
| Synonyms: | butterfingers, disqualified, feeble, impotent, inadequate, incompetent, ineffective, ineligible, inept, inexperienced, inexpert, inproficient, insufficient, losing, naive, not equal to, not up to, poor, powerless, unable, uncool, unequipped, unfit, unqualified, unskilled, unskillful, unsuited, weak |
| Antonyms: | capable, competent, qualified, strong |
| Main Entry: | inefficient |
| Part of Speech: | adjective |
| Definition: | not working well; wasteful |
| Synonyms: | can't hack it, careless, disorganized, extravagant, faulty, feeble, half-baked, improficient, improvident, incapable, incompetent, ineffective, ineffectual, inefficacious, inept, inexpert, not cut out for, prodigal, shooting blanks, slack, slipshod, sloppy, slovenly, unfit, unprepared, unqualified, unskilled, unskillful, untrained, weak |
| Antonyms: | able, capable, competent, efficient, expert, useful |
| Main Entry: | lame |
| Part of Speech: | adjective |
| Definition: | feeble, weak |
| Synonyms: | faltering, faulty, flabby, flimsy, inadequate, ineffective, inefficient, insufficient, poor, thin, unconvincing, unpersuasive, unpleasing, unsatisfactory, unsuitable |
| Antonyms: | able, capable, efficient, satisfactory, strong |
| Main Entry: | null |
| Part of Speech: | adjective |
| Definition: | ineffectual, valueless |
| Synonyms: | absent, bad, barren, characterless, imaginary, ineffective, inefficacious, inoperative, invalid, negative, nonexistent, nothing, null and void, powerless, unavailing, unreal, unsanctioned, useless, vain, void, worthless |
| Antonyms: | effective, effectual, valid, valuable, worthwhile, worthy |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
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Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
