unpremeditated

Synonyms

accidental, casual, chance, fluky (also flukey), fortuitous, inadvertent, incidental, unintended, unintentional, unplanned, unwitting;

Antonyms

calculated, deliberate, intended, intentional, planned, premeditated, premeditative, set;

Near Antonyms

certain, destined, expected, fixed, foreordained, foreseeable, foreseen, inevitable, predestined, predetermined, predictable, preordained, prescribed, sure;

conscious, freewill, knowing, unforced, voluntary, volunteer, willful (or wilful);

Related Words

coincidental;

freak, odd;

aimless, arbitrary, desultory, haphazard, random;

uncertain, unexpected, unforeseeable, unforeseen;

coerced, forced, involuntary;

unconscious, unprompted;