Từ trái nghĩa của done on purpose

involuntary reflex automatic instinctive spontaneous instinctual reflexive unintentional unconscious impulsive mechanical unthinking uncontrolled unintended mechanic robotic unconditioned unplanned blind inadvertent uncontrollable conditioned habitual unbewised uncalculated unchosen unmeditated unpremeditated unprompted unwitting knee-jerk accidental natural subconscious unlearned innate intuitive gut inherent uncalculating unrealized undeliberate naive innocent simple hard-wired impromptu extempore extemporaneous impetuous casual coincidental naïve unmeant well-intentioned honest chance unknowing from the hip spur-of-the-moment off-the-cuff

fortunate lucky coincidental incidental random chance inadvertent flukey fluky haphazard unexpected variable fortuitous odd unanticipated unforeseen unintended unplanned unpremeditated accidental unintentional unwitting well timed casual serendipitous aleatory adventitious involuntary unlooked-for unforeseeable unmeant unthinking unpredicted spontaneous uncalculated circumstantial occurring by accident occurring by chance

random unpremeditated haphazard impulsive unintentional unplanned impromptu slapdash spontaneous spur-of-the-moment uncoordinated hasty hurried rushed unarranged undesigned unintended unprepared unscheduled catch-as-catch-can helter-skelter

set prescribed assigned stipulated imposed specified compulsory recommended required

done penance done someone a service done something done something up done the business done the dirty on done one's bidding done off the top of your head done offhand done not take into account done not subscribe to done manually