adj. 1. Roving, especially in search of adventure: knights errant. 2. Failing to adhere to guidelines or moral standards: errant youngsters. 3. a. Moving from the proper course or established limits: errant lambs. b. Aimless or irregular in motion: an errant afternoon breeze. c. Missing an intended target or recipient: an errant shot. [Middle English erraunt, from Anglo-Norman, partly from Old French errer, to travel about (from Vulgar Latin *iterāre, from Latin iter, journey; see ei- in the Appendix of Indo-European roots) and partly from Old French errer, to err; see ERR.] errant n. errant·ly adv. |
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