effective, effectual, efficacious

ineffective, inept, impotent, toothless, feckless, feeble, clumsy, incompetent, useless, indecisive, unconvincing, halfhearted, misguided, maladroit, unimaginative, amateurish, bumbling, powerless, uncoordinated, clueless, futile, spineless, disorganized, timid, insipid, pointless, rudderless, untrustworthy, unfocused, irresolute, flaccid, disinterested, aimless, incommunicative, witless, meddlesome, uncreative, humorless, disjointed, passionless, unproductive, dysfunctional, buffoonish, risible, inefficient, pathetic, hapless, laughable, unassertive, spiritless, miscast, incapable, gutless, venal, doltish, unaccountable, uninspiring, emasculated, enfeebled, unconfident, indifferent, hopeless, counterproductive, obsequious, uncaring, apathetic, thankless, fruitless, unthreatening, inadequate, irresponsive, shambolic, obtuse, cynical, unfocussed, timorous, unworkable, charmless, pusillanimous, gormless, dunderheaded, superfluous, wimpish, unimpressive, vacuous, wasteful, unmotivated, pitiful, uninterested, imperious, hamstrung, irrelevant, unsympathetic, unambitious, slapdash, unhelpful, unstatesmanlike, inconsequential, unreliable, unintelligent, helpless, uninspired, energetic, vigorous, forceful, aggressive, courageous, hesitant, irresponsible, dictatorial, frantic, frenzied, purposeful, resolute, underhanded, violent

bomb, bushnell, david bushnell, doormat, dud, father of the submarine, feckless, fecklessness, gumming, heave, hooray henry, ineffectually, inept, mousey, mousy, mumbling, paper tiger, retch, turkey, weakling, wimpish, wimpy, wuss

otiose, unable, unavailing, uneffective