Source : Webster's Revised Unabridged Dictionary (1913)

Wintery \Win"ter*y\, a.
   Wintry.

Source : WordNet®

wintery
     adj : characteristic of or occurring in winter; "suffered severe
           wintry weather"; "brown wintry grasses" [syn: {wintry}]
           [ant: {vernal}, {summery}, {autumnal}]
     [also: {winteriest}, {winterier}]