I deleted the photo by accident.
Synonyms and examplesaccidentallyI accidentally deleted the photo.
by mistakeI deleted the files by mistake.
in errorHer name was passed to the police in error.
Antonyms and examplesdeliberatelyThe group was deliberately targeting civilians.
on purposeYou did it on purpose!
Go to the thesaurus article about these synonyms and antonyms ofby accident.
See alsoaccident
mishap
mischanceformal
misfortune
misadventureliterary
death by misadventureUKlaw
collision
head-on
shuntUKinformal
crash
car crash
smashUK
smash-upUK
hit-and-run
pile-up
prangUKinformal
fender benderUSinformal
bump
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An accidentis something bad that happens and that is not expected or intended. It can also refer toa traffic accident. Things which you do not intend to have happen can happenby accident.