mis ‧ de ‧ mea ‧ nour BrE AmE British English , misdemeanor American English /ˌmɪsdɪˈmiːnə $ -ər/ noun [countable]
1 . formal a bad or unacceptable action that is not very serious:
Alfred beat his children for even the smallest misdemeanour.
2 . law a crime that is not very serious ⇨ felony