nondescript

adjective

1. of no recognized, definite, or particular type or kind: a nondescript novel; a nondescript color.
2. undistinguished or uninteresting; dull or insipid: The private detective deliberately wore nondescript clothes.

noun

3. a person or a thing of no particular or notable type or kind.

adjective

1. lacking distinct or individual characteristics; having no outstanding features

noun

2. a nondescript person or thing

adj.1680s, “not hitherto described,” in scientific usage, coined from non- + Latin descriptus, past participle of describere (see describe). General sense of “not easily described or classified” is from 1806.