Cold | synonyms

Cold
1.chilly, freezing
Siberian, algid, arctic, below freezing, below zero, benumbed, biting, bitter, blasting, bleak, boreal, brisk, brumal, chill, chilled, cool, crisp, cutting, frigid, frore, frosty, frozen, gelid, glacial, have goose bumps, hawkish, hiemal, hyperborean, icebox, iced, icy, inclement, intense, keen, nipping, nippy, numbed, numbing, one-dog night, penetrating, piercing, polar, raw, rimy, severe, sharp, shivery, sleety, snappy, snowy, stinging, two-dog night, wintry 
antonyms:  hot, warm 
2. aloof, unresponsive apathetic, cold-blooded, cool, dead, distant, emotionless, frigid, frosty, glacial, icy, impersonal, imperturbable, indifferent, inhibited, inhospitable, joyless, lukewarm, matter-of-fact, passionless, phlegmatic, reserved, reticent, spiritless, standoffish, stony, unconcerned, undemonstrative, unenthusiastic, unfeeling, unimpassioned, unmoved, unresponsive, unsympathetic 
antonyms:  animated, ardent, eager, enthusiastic, excited, fervid, friendly, interested, sympathetic, warm, zealous 
3. frigid conditions  ague, algidity, algor, chill, chilliness, coldness, congelation, draft, freeze, frigidity, frost, frostbite, frostiness, frozenness, gelidity, gelidness, glaciation, goose flesh, iciness, inclemency, rawness, refrigeration, shivering, shivers, snow, wintertime, wintriness 
antonyms:  heat, warmth 
4. sensation of cold (noun)cold, coldness; frigidity, inclemency, fresco. , winter; depth of winter, hard winter; Siberia,
[forms of frozen water] ice; snow, snowflake, snow crystal, snow drift; sleet; hail, hailstone; rime, frost; hoar frost, white frost, hard frost, sharp frost; barf; glaze [U. S.], lolly; icicle, thick-ribbed ice; fall of snow, heavy fall; iceberg, icefloe; floe berg; glacier,
[Sensation of cold] chilliness; chill; shivering; goose skin, rigor, horripilation, chattering of teeth.
antonyms:  heat
5.be cold (verb) shiver, starve, quake, shake, tremble, shudder, didder, quiver; perish with cold; chill (render cold); horripilate

Hot | synonyms

Hot
1. very high in temperature
baking, blazing, blistering, boiling, broiling, burning, calescent, close, decalescent, febrile, fevered, feverish, feverous, fiery, flaming, heated, humid, igneous, incandescent, like an oven, on fire, ovenlike, parching, piping, recalescent, red, roasting, scalding, scorching, searing, sizzling, smoking, steaming, stuffy, sultry, summery, sweltering, sweltry, thermogenic, torrid, tropic, tropical, very warm, warm, white
antonyms: cold, cool, freezing, frigid
2. spicy to taste
acrid, biting, peppery, piquant, pungent, racy, sharp, spicy, zestful
antonyms: mild, moderate
3. passionate, vehement
angry, animated, ardent, aroused, distracted, eager, enthusiastic, excited, fervent, fervid, fierce, fiery, furious, ill-tempered, impassioned, impetuous, indignant, inflamed, intense, irascible, lustful, raging, stormy, temperamental, touchy, violent
antonyms: calm, indifferent, unfeeling
4. new, in vogue
approved, cool, dandy, favored, fresh, glorious, groovy, in demand, just out, keen, latest, marvelous, neat, nifty, peachy, popular, recent, sought-after, super, trendy, up-to-the-minute
antonyms: old, old-fashioned, out, unpopular
5. sensual
aroused, carnal, concupiscent, erotic, lascivious, lewd, libidinous, lustful, passionate, prurient, salacious
antonyms: turned off