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slack spined

 - 1 of 1 thesaurus result
Main Entry: ineffective
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
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