Source : WordNet®

frostier
     See {frosty}

frosty
     adj 1: devoid of warmth and cordiality; expressive of
            unfriendliness or disdain; "a frigid greeting"; "got a
            frosty reception"; "a frozen look on their faces"; "a
            glacial handshake"; "icy stare"; "wintry smile" [syn:
            {frigid}, {frozen}, {glacial}, {icy}, {wintry}]
     2: covered with frost;  "a frosty glass"; "hedgerows were rimed
        and stiff with frost"-Wm.Faulkner [syn: {rimed}, {rimy}]
     3: pleasantly cold and invigorating; "crisp clear nights and
        frosty mornings"; "a nipping wind"; "a nippy fall day";
        "snappy weather"; (`parky' is a British term) [syn: {crisp},
         {nipping}, {nippy}, {snappy}, {parky}]
     [also: {frostiest}, {frostier}]