Synonyms and related words :
a bit previous, ad-lib, advanced, airy, amateurish, asleep, careless, casual, caught napping, caught off balance, caught short, cursory, degage, disregardant, disregardful, dumbfounded, easygoing, extemporaneous, extemporized, far ahead, flippant, forgetful, forward, free and easy, goofing off, half-baked, half-cocked, haphazard, hasty, heedless, ill-considered, impromptu, improvised, impulsive, incautious, incomplete, inconsiderate, indifferent, inexpectant, insouciant, lazy, makeshift, napping, nodding, nonexpectant, not firm, oblivious, off-guard, offhand, overhasty, oversoon, perfunctory, precipitate, precocious, premature, previous, reckless, regardless, respectless, rough-and-ready, rushed, semiskilled, sleeping, snap, surprised, tactless, taken aback, taken by surprise, taken unawares, thoughtless, too early, too soon, tripped up, unaccomplished, unadmonished, unadvised, unalert, unanticipating, unanticipative, unarranged, unaware, unbegun, unbusinesslike, uncautious, uncoached, uncompleted, unconcocted, uncontrived, uncrystallized, undeliberated, undevised, undiplomatic, unendowed, unexpecting, unfinished, unforewarned, ungifted, unguarded, unguessing, unhatched, unheedful, unheeding, uninformed, uninitiated, unjelled, unmade, unmanufactured, unmatured, unmeditated, unmindful, unorganized, unplanned, unpolished, unpremeditated, unprimed, unprofessional, unready, unripe, unschooled, unskilled, unsolicitous, unstudied, unsuspecting, untactful, untalented, untaught, unthinking, untimely, untrained, untutored, unvigilant, unwarned, unwary, unwatchful