a. Not necessary; not required under the circumstances; unless; needless; as, unnecessary labor, care, or rigor. -- Un*nec"es*sa*ri*ly adv. -- Un*nec"es*sa*ri*ness, n. [ 1913 Webster ]
[にはおよばない, nihaoyobanai] (exp) (1) (uk) (after a verb) there is no need to; it is fine if you don't; unnecessary; (2) (after a noun) does not match; out of reach of