The Collaborative International Dictionary of English v.0.48:
Whitish \Whit"ish\, a. [From White.] [1913 Webster] 1. Somewhat white; approaching white; white in a moderate degree. [1913 Webster] 2. (Bot.) Covered with an opaque white powder. [1913 Webster]WordNet (r) 3.0 (2006):
whitish adj 1: resembling milk in color not clear; "milky glass" [syn: milky, milklike, whitish] 2: of something having a color tending toward white [syn: whitish, off-white]