uncontrolled motion that is irregular or unpredictable; "an errant breeze" straying from the right course or from accepted standards; "errant youngsters
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. Usually his cases involved errant husbands and wandering wives. behaving badly, usually by not obeying your parents or not being faithful to your husband or wife (present participle of errare; ERR)
{s} straying, erring; roving, wandering, journeying; aimlessly moving from one place to another