non·de·script 
(n
ŏn
′d
ĭ-skr
ĭpt
)
adj. Lacking distinctive qualities; having no individual character or form:
"This expression gave temporary meaning to a set of features otherwise nondescript" (Katherine Anne Porter).
[NON- + Latin dēscrīptus, past participle of dēscrībere, to describe; see DESCRIBE.]
non′de·script n.