- having much ice; full of or covered with ice
- of or like ice; specif.,
- very cold; frigid
- cold in manner or attitude; unfriendly
Origin of icyMiddle English isy from Old English isig
- Containing or covered with ice: an icy road.
- Bitterly cold; freezing: an icy day. See Synonyms at cold.
- a. Unfriendly or hostile: an icy stare.b. Showing no emotion: icy detachment.
(comparative icier, superlative iciest)