unintentional
adjective/ˌʌnɪnˈtɛnʃənəl/
Frequency rank: #11,552 most common English word
Meaning
Not done on purpose; happening without intention.

Example sentence
The teacher assured the student that the mistake was completely unintentional and not worth worrying about.
Synonyms & related words
- accidental
- unplanned
- inadvertent
- undeliberate
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