unintentional

1 happening by chance an unintentional encounter with an old classmate at the mall Synonyms casual, chance, fluky (also flukey), fortuitous, inadvertent, incidental, unintended, accidental, unplanned, unpremeditated, unwittingRelated Words coincidental; freak, odd; aimless, arbitrary, desultory, haphazard, random; uncertain, unexpected, unforeseeable, unforeseen; coerced, forced, involuntary; unconscious, unpromptedNear Antonyms certain, destined, expected, fixed, foreordained, foreseeable, foreseen, inevitable, predestined, predetermined, predictable, preordained, prescribed, sure; conscious, freewill, knowing, unforced, voluntary, volunteer, willful (or wilful)Antonyms calculated, deliberate, intended, intentional, planned, premeditated, premeditative, prepense, set

2 not made or done willingly or by choice an unintentional insult that nevertheless was very hurtful Synonyms coerced, forced, unintended, involuntary, unwilling, will-lessRelated Words accidental, unplanned, unpremeditated; automatic, impulsive, instinctive, spontaneous, unprompted; inadvertent, unconscious, unknowing, unwittingNear Antonyms advised, conscious, considered, knowing, planned, premeditated, premeditative, prepense, purposeful; volitional; self-imposed, self-inflictedAntonyms deliberate, freewill, intentional, uncoerced, unforced, voluntary, willful (or wilful), willing