Đồng nghĩa của lacking foundation

idle useless empty pointless futile worthless ineffective vain groundless ineffectual aimless hopeless inconsequential insignificant meaningless abortive fruitless hollow insubstantial trifling trivial unproductive unsuccessful valueless baseless impotent bootless casual otiose profitless purposeless senseless unavailing irrelevant nugatory rambling unfounded unhelpful in vain of no avail without foundation without grounds not serious of no use unprofitable inefficacious barren to no effect to no avail unrewarding to no purpose failed sterile non-successful unfruitful inutile inept inadequate null unfructuous paltry inefficient inoperative weak unimportant wasted no dice void feckless unremunerative inane needless counterproductive thwarted feeble impractical lazy unavailable lame superfluous good-for-nothing unable indecisive not worth the candle without rhyme or reason on a treadmill thankless expendable unpurposed nonsensical absurd no use unusable footling unprolific incompetent purportless unsatisfactory stupid disadvantageous unmeaning powerless impracticable Sisyphean chaffy exhausted fatuous unreal junky forceless withered defeasible inferior neutralised spineless innocuous neutralized limited anticlimactic frivolous without success delusive no-good unsubstantial petty no good gainless bungled insufficient for nought of no value null and void insincere indolent slothful surplus inactive laggard failing invalid scant uneconomic miscarried emasculate slack-spined motiveless miserable bungling cheap vapid banal forlorn pyrrhic a dead loss dead unimpressive not effective no go no way save one's breath insipid unsalable for naught specious insane frustaneous unlucrative dry bad Pyrrhic nonbinding nonvalid doomed spinning one's wheels wild goose chase of no earthly use redundant nongermane unnecessary lost uncreative slow unyieldly nonproductive blocked wasteful baulked misfired resultless unneeded unreasonable mindless time-wasting frustrated foiled unsound no-win puny misleading slight unnotable shuck delusory balked not pertinent no good to gundy incoherent going nowhere in vicious circle not a prayer illogical hamstrung inexpedient incomprehensible unintelligible invertebrate nonfunctional unfunctional silly vacuous foolish dysfunctional scrap waste unworkable ridiculous poor nothing negligible pathetic trashy wretched bogus mediocre abandoned unessential ignoble flat vacant no-account defeated measly piddling pants wanky despicable contemptible base abject drossy ne'er-do-well impuissant botched unconvincing disastrous stymied unsuitable unreturned hindered stonewalled obstructed thin tame unserviceable cramped dull stillborn nonpractical nominal niggling piddly picayune pimping piffling inconsiderable chicken peanut minute implausible flimsy not worth it boring broken unuseful inoperable throwaway helpless impossible stale uninspiring shallow not useful uninteresting tedious arid commonplace ill-fated bleak fouled up de minimis Mickey Mouse deficient defective poxy rubbishy nickel-and-dime lacklustre dreary monotonous drab unstimulating prosaic lifeless humdrum unachievable of no benefit unfilled clear rubbish not worth a hill of beans a dime a dozen two a penny not much cop despaired of beyond remedy lackluster goalless designless thoughtless witless irrational wanton indiscriminate desultory brainless random wishy-washy uncalled for undirected floundering haphazard drifting uncalled-for hit-or-miss

lacking harmony lacking in lacking in character lacking in confidence lacking in depth lacking in detail lacking for something lacking foresight lacking fitness lacking firmness lacking finesse lacking feeling