nondescript

a.平凡无奇的，无明显特征的

non-starter, non-stick, non-stop, non-U, non-union, non-verbal, non-violence, non-violent, non-white, nonage, nonagenarian, nonce, nonce-word, nonchalance, nonchalant, nonchalantly, noncommittal, nonconformist, nonconformity, noncontemporaneous, none, none but, none other than, none the less, none too, nonentity, nonesuch (also nonsuch), nonetheless, nonexistent, nonflammable, nonmilitary, nonpareil, nonphysical, nonplus, nonporous, nonradioactive, nonsense, nonsensical, nonsensically, nonsuch,