errant /ˈerənt/ adjective Learner's definition of ERRANT
1 always used before a noun
a : behaving wrongly犯錯誤的;行爲不當的;出格的 b US : going outside the proper area偏離正路的;迷途的 c US, sports : not going in the intended direction : not accurate失誤的;不準確的 2
: wandering to different places in search of adventure漫遊的;漂泊的;遊歷的 — see also knight-errant ◊ Do not confuse errant with arrant.