adverb
unintentionally
adverb
1
Without meaning to; by accident.
"She unintentionally deleted the whole file."
"He unintentionally offended his host with the comment."
How to Use Unintentionally
Learner’s notesIn plain EnglishDid something by accident, not on purpose.
Word Forms
more unintentionally comparative, most unintentionally superlative
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She _____ deleted the whole file.
Etymology
From unintentional + -ly.