adjective
1.
marked by a deficiency of warmth
a cold day
Synonyms: arctic, chill, chillsome, chilly, cool, freezing, frigid, frore, frosty, gelid, glacial, icy, nippy, shivery
Related Word: biting, bleak, chilling, cutting, nipping, polar, raw, sharp; frozen, iced, wintry; bracing, brisk, crisp, snappy
Contrasted words: genial, mild
Antonyms: warm
2.
lacking cordiality or emotional warmth
a cold greeting
Synonyms: chill, emotionless, frigid, glacial, icy, indifferent, unemotional
Related Word: unenthusiastic, unresponsive, unsympathetic
Contrasted words: cordial, friendly, genial, hearty, warm; empathic, sympathetic
3.
Synonyms: matter-of-fact 3, cold-blooded, emotionless, impersonal, unimpassioned
4.
Synonyms: frigid 3, inhibited, passionless, undersexed, unresponsive
Antonyms: hot
5.
Synonyms: gloomy , 3, black, bleak, cheerless, dismal, dispiriting, drear, joyless, oppressive, somber
6.
Synonyms: dead 1, asleep, deceased, defunct, departed, exanimate, extinct, inanimate, late, lifeless
7.
Synonyms: insensible 2, comatose, inconscious, senseless, unconscious