unintentional

英[ʌnɪn'tenʃ(ə)n(ə)l] 美[,ʌnɪn'tɛnʃənl]

1. not done or made or performed with purpose or intent

2. without deliberate intent;

"my heart with unwilled love grew warm"- George Macdonald

3. not intentional;

"an unintended slight"

"an unintentional pun"

"the offense was unintentional"

"an unwitting mistake may be overlooked"