List of perfunctory synonyms and perfunctory related words.
Laodicean, airy, apathetic, at odds, ataractic, automatic, averse, backward, balking, balky, blase, businesslike, careless, casual, cold, cool, cursory, degage, devil-may-care, differing, dilatory, disagreeing, disinclined, disinterested, dismissive, disobedient, dispassionate, disregardant, disregardful, distant, easygoing, fervorless, fleeting, flippant, forced, forgetful, formal, fractious, free and easy, grudging, halfhearted, hasty, heedless, hurried, impersonal, inattentive, inconsiderate, incurious, indifferent, indisposed, indocile, inexcitable, insouciant, involuntary, lackadaisical, laggard, lazy, listless, loath, lukewarm, mechanical, mindless, mutinous, negligent, neuter, neutral, nonchalant, oblivious, offhand, opposed, pococurante, recalcitrant, reckless, refractory, regardless, reluctant, removed, renitent, resistant, respectless, restive, routine, rushed, sketchy, slipshod, slovenly, slow, slow to, spotty, standard, stock, sulky, sullen, superficial, tactless, tepid, thoughtless, turned-off, unanxious, unaware, unconcerned, unconsenting, undiplomatic, undiscriminating, unenthusiastic, unheedful, unheeding, uninterested, uninvolved, unmindful, unprepared, unready, unsolicitous, untactful, unthinking, unwilling, unzealous, usual, wooden, zealless