How to say "cool" in Japanese

• 冷やすひやすJLPT N2approx.Common
  godan verb, transitive verbA verb for actively making something colder — chilling a drink or refrigerating food. Use it when 'cool' means lowering the temperature of something, not for cool weather or a cool person.
  ワインをもっと冷ひやしたいんだ。↗

  I want to chill the wine more.
• 涼しいすずしいJLPT N5approx.Common
  i-adjectiveAn adjective for pleasantly cool air or weather, with a refreshing nuance. Use it when 'cool' describes the temperature of a day or a breeze, not of an object you are chilling.
  日増ひましに涼すずしくなっていく。↗

  It's getting cooler day by day.
• 平気へいきJLPT N2approx.Common
  na-adjective, nounCovers 'cool' only in the sense of calm, composed and unconcerned — staying cool under pressure. It is not about temperature, and it is not the slang 'cool' meaning appealing or fashionable.
  彼かれは平気へいきでうそをつく。↗

  He has no scruples about lying.
• クールCommon
  na-adjectiveThe loanword, for 'cool' as a descriptive term of temperature or color, as when art or design is discussed in terms of cool shades; for cool weather, 涼しい is the word instead.
  カラー・キー・プログラム・システムでは全すべての色いろが「クールパレット」と「ウォームパレット」の２つに分わけられる。↗

  With the colour key program system, all colours are divided into two palettes, the "cool palette" and the "warm palette".
• 冷ますさますJLPT N2approx.Common
  godan verb, transitive verbA verb for letting something hot cool toward room temperature, as with soup or tea before drinking. Where 冷やす chills or refrigerates, this describes heat fading rather than something being made cold.
  ちょっと冷さまして、熱あついうちは食たべないように。↗

  Let your food cool off a bit; don't eat it while it's hot.

Choose by sense: 「冷やす」 and 「冷ます」 are verbs for lowering temperature — chilling versus letting heat fade — 「涼しい」 describes pleasantly cool weather, 「クール」 covers temperature and color, and 平気 means calm and composed.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 冷やすひやすto cool
• 涼しいすずしいcool
• 平気へいきcool
• クールcool (temperature, color, etc.)
• 冷ますさますto cool (e.g. from a high temperature to room temperature)
• 平然へいぜんcalm
• 清涼せいりょうcool
• 冷淡れいたんcool
• 冷ややかひややかcold
• 落ち着いたおちついたcalm
• かっこいいattractive
• ひんやりcool
• 冷涼れいりょうcool
• 涼味りょうみcool
• 恬然てんぜんcool
• イケてるcool
• かっけーcool
• 涼しげすずしげcool (of temperature)
• 原産国表示げんさんこくひょうじcountry of origin labeling
• 格好の良いかっこうのいいattractive
• かっちょいいattractive
• 格好がいいかっこうがいいattractive
• やばいterrific
• ヒップhip
• 冷やひやcold
• 白むしらむto cool (of a mood)
• 冷やかすひやかすto cool
• 砕けるくだけるto collapse
• 鷹揚おうようplacid
• やばすterrific
• ドープdope
• えぐいawesome