doing something that is wrong; not behaving in an acceptable way 犯错误的；行为不当的；出格的 errant fathers who refuse to pay maintenance for their children 拒绝支付子女抚养费的不守规矩的父亲 - (figurative)
She brushed an errant curl from her forehead. 她拂去额头上一缕飘动的卷发。
(of a husband or wife 丈夫或妻子 not sexually faithful 对配偶不忠的；出轨的 see also knight errant
Word OriginMiddle English(in the original sense ‘travelling in search of adventure’): the current sense is from Latin errant- ‘erring’, from the verb errare. Compare with arrant.