List of careless synonyms and careless related words.
absent-minded, accident-prone, airy, all thumbs, aloof, apathetic, arbitrary, artless, ataractic, awkward, barbarous, beat-up, bedraggled, behindhand, blase, blowzy, blunderheaded, blundering, boorish, bored, breakneck, bumbling, bungling, butterfingered, capricious, carefree, casual, chintzy, clownish, clumsy, clumsy-fisted, cumbersome, cursory, degage, delinquent, derelict, desperate, detached, devil-may-care, dilapidated, disheveled, disinterested, dispassionate, disregardant, disregardful, distant, distracted, distrait, drabbletailed, draggled, draggletailed, easy, easygoing, erroneous, faulty, feckless, fingers all thumbs, flippant, forgetful, free and easy, frowzy, frumpish, frumpy, fumbling, furious, gauche, gawkish, gawky, graceless, grubby, ham-fisted, ham-handed, harum-scarum, hasty, headlong, heavy-handed, heedless, hotheaded, hulking, hulky, hurried, impassive, impetuous, impotent, imprecise, improper, imprudent, in rags, inaccurate, inadequate, inadvertent, inattentive, incapable, incautious, inconsiderate, incorrect, incurious, indifferent, inelegant, inexact, inexcitable, infelicitous, informal, ingenuous, inobservant, insouciant, irresponsible, lackadaisical, lax, lazy, left-hand, left-handed, lenient, listless, loose, loutish, lubberly, lumbering, lumpen, lumpish, mad, maladroit, messy, mindless, mussy, neglectful, negligent, nonchalant, oafish, oblivious, offhand, overeager, overenthusiastic, overindulgent, overpermissive, overzealous, perfunctory, permissive, phlegmatic, pococurante, poky, ponderous, precipitant, precipitate, precipitous, ragged, raggedy, rash, raunchy, reasonless, reckless, regardless, relaxed, remiss, respectless, ruinous, scraggly, seedy, shabby, shoddy, slack, slap-bang, slapdash, slatternly, slipshod, sloppy, slovenly, sluttish, soft, solecistic, sordid, squalid, stiff, stolid, tacky, tactless, tattered, thoughtless, turned-off, unanxious, uncalculating, uncaring, unconcerned, uncouth, undiplomatic, undiscriminating, unfastidious, unfit, ungainly, ungraceful, ungrammatic, unguarded, unhandy, unheedful, unheeding, uninquiring, uninterested, uninvolved, unkempt, unmarking, unmindful, unneat, unnoticing, unnoting, unobservant, unobserving, unprepared, unqualified, unready, unreasoning, unreflecting, unreflective, unremarking, unrestrained, unsightly, unsolicitous, unstudied, untactful, unthinking, unthorough, unthoughtful, untidy, untroubled, unwary, unwieldy, unworried, wanton, weak, wild, withdrawn, wrecking, wrong