errant

1. ADJ Errant is used to describe someone whose actions are considered unacceptable or wrong by other people. For example, an errant husband is unfaithful to his wife. 行为不当的; 犯错误的[正式] [ADJ n]

Usually his cases involved errant husbands and wandering wives. 通常他接手的案子都涉及出轨的丈夫和离家出走的妻子。