icy vs wintry

icy and wintry both are adjectives.

Word	Noun	Adjective	Verb	Adverb
icy	No	Yes	No	No
wintry	No	Yes	No	No

As adjectives, icy and wintry are synonyms defined as:

icy and wintry: devoid of warmth and cordiality; expressive of unfriendliness or disdain

Other synonyms of icy include frigid, frosty, frozen, glacial.

icy (adjective)	wintry (adjective)
extremely cold	characteristic of or occurring in winter
devoid of warmth and cordiality; expressive of unfriendliness or disdain	devoid of warmth and cordiality; expressive of unfriendliness or disdain
covered with or containing or consisting of ice
shiny and slick as with a thin coating of ice