unapparent

unapparent

(ˌʌnəˈpærənt) adjnot apparent, obvious, or visible

Thesaurus

Adj.

1.

unapparent - not readily apparent; "the answer was at first unapparent"unobvious - not immediately apparent; "in mathematical science connections are exhibited which...are extremely unobvious"- A.N.Whitehead