Synonyms and related words :
accidental, accidentally, ad-lib, aimless, aimlessly, amorphous, any which way, anyhow, anywise, around, at random, botched, bungling, capricious, careless, carelessly, casual, casually, caught napping, caught off balance, caught short, causeless, chance-medley, clumsy, deficient, designless, desultory, disarticulated, discontinuous, disjunct, disordered, dispersed, disproportionate, driftless, dysteleological, erratic, extemporaneous, extemporized, fitful, formless, frivolous, gratuitous, half-assed, haphazardly, hasty, helter-skelter, hit-and-miss, hit-or-miss, immethodical, impromptu, improvised, inchoate, incoherent, indiscriminate, inexplicable, irregular, makeshift, meaningless, messy, mindless, misshapen, nonsymmetrical, nonsystematic, nonuniform, orderless, planless, potluck, precipitate, promiscuous, promiscuously, purposeless, random, random shot, randomly, rough-and-ready, senseless, shapeless, slipshod, slipshoddy, sloppy, slovenly, sluttish, snap, spasmodic, sporadic, stochastic, straggling, straggly, systemless, taken aback, taken by surprise, taken unawares, tripped up, unaccountable, unarranged, unbegun, unclassified, unconcocted, unconsidered, uncontrived, undeliberated, undevised, undirected, ungraded, unhatched, unjoined, unmade, unmanufactured, unmethodical, unmotivated, unordered, unorganized, unplanned, unpremeditated, unprepared, unprimed, unready, unsorted, unstudied, unsymmetrical, unsystematic, untidy, ununiform, vague, wandering