CASUAL

adj. 1 accidental, chance, random, fortuitous, unexpected, unforeseen, unpremeditated, unplanned, unforeseeable, unpredictable, serendipitous It was only a casual remark, but it was taken very seriously We interviewed casual passers-by. 2 uncertain, unsure, haphazard, occasional, random, irregular, unsystematic, sporadic, erratic The budget includes provision for both certain and casual revenues 3 indifferent, nonchalant, offhand, insouciant, apathetic, cool, unconcerned, uninterested, pococurante, dispassionate, blasé, relaxed, lackadaisical He may seem casual, but he is genuinely concerned about the patients 4 informal; lounge Dinner dress is not required you may come in casual clothes 5 offhand, happy-go-lucky, natural, easy, easygoing, devil-may-care, unconcerned, relaxed, dégagé, unconstrained Phil is quite casual about losing money at roulette