Synonyms for "unplanned": unexpected, unforeseen, impromptu, spontaneous, unintended, accidental, chance, off-the-cuff, ad-lib, unpremeditated, casual, extemporaneous, unscripted, fluky, contingent, random, designless, undesigned, irresolute, unstudied, extempore, offhand, irreflective, unwilled, fortuitous, wayward, unforethoughtful, gratis, grassy, catch-as-catch-can, happy-go-lucky, devil-may-care, hit-or-miss, free-spoken, unwitting, inadvertent, unlooked-for, undreamt of, unhoped-for, uncalled-for, unmeant, unpurposed, unprojected, undesired, unbidden, ambulant, gratuitous, free, unprovoked, unthinking, careless, irresponsible, lighthearted, jocund, debonair, unconcerned, unheeding, heedless, thoughtless, scatterbrained, vacant, daft, witless, mindless, vapid, empty-headed, frivolous, brainless, addlepated, lackadaisical, unattentive, absent-minded, forgetful, oblivious, inattentive, unwatchful, undisciplined, lax, relaxed, slack, unprincipled, wanton, promiscuous, easy, unceremonious, unconstrained, unrestrictive, unfastidious, informal, unmethodical, unsystematic, haphazard, disordered, desultory, aimless, nonobjective, noncommittal, ungoverned, unguided, uncontrolled, wild, errant, wandering, stray, footloose, drifting, roving, rambling, deviant, rogue, unconventional, unconformable, nonorthodox, nonstandard, atypical, unusual, rare, eccentric, self-willed, mutinous, rebellious, recalcitrant, obstinate, obdurate, inexorable, headstrong, mulish, bullheaded, pigheaded, froward, fractious, perverse, contrary, awkward, difficult, ungainly, gauche, maladroit, inept, bungling, incompetent, crude, artless, untutored, callow, unaccomplished, unprepared, extemporary, de facto, de jure, wrong, bad, unsatisfactory, defective, imperfect, incomplete, inferior, poor, substandard, cheap, shoddy, tacky, base, trashy, lousy, ratty, second-rate, wretched, paltry, sorry, lame, weak, feeble, flimsy, jejune, crass, inane, insubstantial, flocculent, tawdry, common, vulgar, ignoble, deficient, wanting, short, empty, bare, destitute, disappointed, frustrated, discontented, disgruntled, malcontent, sad, sorrowful, doleful, woeful, melancholy, lugubrious, dejected, crestfallen, downcast, downhearted, depressed, despondent, disconsolate, forlorn, wistful, dolorous, lachrymose, teary, tearful, unhappy, miserable, afflicted, ill-fated, ill-starred, hapless, unblessed, unprosperous, accursed, unwell, peaked, unhealthy, invalid, infirm, ailing, poorly, seedy, indisposed, sickly, bedridden, flat, insipid, tasteless, bland, mawkish, banal, hackneyed, worn-out, dull, unoriginal, uninspired, prosaic, pedestrian, earthbound, spiritless, humdrum, monotonous, tedious, wearisome, irksome, bothersome, boring, tiresome, ennui, arid, stale, musty, fusty, dry, barren, unprofitable, useless, abortive, inutile, ineffectual, sterile, effete, decrepit, emaciated, unproductive, fruitless, vain, futile, nugatory, nonviable, spent, unserviceable, cast-off, effluent, superfluous, extravagant, otiose, splendid, magnificent, glorious, gorgeous, resplendent, showy, ornate, flamboyant, theatrical, ostentatious, pretentious, pompous, grandiose, fanciful, elegant, polished, graceful, refined, genteel, well-bred, well-mannered, courtly, chivalrous, civil, urbane, cosmopolitan, suave, jaunty, dapper, natty, trig, smart, bright, handsome, good-looking, fair, comely, winsome, alluring, attractive, ravishing, enchanting, charming, pleasing, agreeable, delightful, balmy, mild, pleasant, lovely, bonny, sweet, auspicious, benign, kind, gracious, beneficent, propitious, welcome, seasonable, commodious, congenial, genial, blithe, cheery, gay, gleeful, merry, jolly, festive, buoyant, exuberant, elated, ecstatic, glowing, radiant, sunny, bright-eyed, cheerful, jovial.