• 酷こく

  severe, harsh, stringent, rigorous, strict, unfair

• 酷暑こくしょ

  intense heat, severe heat

• 酷使こくし

  exploitation, overuse, abuse

• 酷くひどく

  terribly, awfully, dreadfully, extremely, severely, very (much)

• 酷評こくひょう

  severe criticism, sharp criticism, scathing criticism, diatribe, panning

• 酷似こくじ

  resembling closely, being strikingly similar, bearing a strong likeness

• 酷いひどい

  cruel, heartless, hard, harsh, severe

• 残酷ざんこく

  cruel, brutal, ruthless, merciless, inhuman

• 過酷かこく

  severe, harsh, hard, cruel, rigorous

• 冷酷れいこく

  cruelty, coldheartedness, relentless, ruthless

• 酷烈こくれつ

  severity

• 酷遇こくぐう

  maltreatment

• 酷税こくぜい

  heavy taxation

• 酷熱こくねつ

  intense heat

• 酷刑こっけい

  severe punishment

• 酷寒こっかん

  severe cold, intense cold, bitter cold

• 酷道こくどう

  (national) road in poor condition

• 酷薄こくはく

  cruel, inhumane, callous, brutal

• 酷吏こくり

  unsparing official, unmerciful administrator

• 厳酷げんこく

  severity, rigor, rigour

• 峻酷しゅんこく

  severe (personality), unaffected by love

• 酷暑日こくしょび

  day on which the temperature rises above 35°C, extremely hot day

• 残酷焼ざんこくやき

  live broiling of shellfish

• 酷寒猛暑こっかんもうしょ

  bitter cold and fierce heat

• 酷すぎるひどすぎる

  egregious, outrageous, too much, over the top

• 酷のあるこくのある

  full-bodied (e.g. wine, sake), rich, robust (flavor), full-flavored

• 酷があるこくがある

  to be full-bodied (e.g. wine, sake), to be rich, to be robust (in flavor), to be full-flavored

• 残忍酷薄ざんにんこくはく

  cruel, heartless, brutal, atrocious

• こっ酷いこっぴどい

  (really) terrible, awful, (very) nasty, (extremely) harsh, severe

• 冷酷無情れいこくむじょう

  cruel and heartless, merciless, implacable

• 冷酷無惨れいこくむざん

  cruel and heartless, merciless, implacable, cold-blooded

• 残酷非道ざんこくひどう

  inhumanity, atrocity, abominable cruelty

• 残忍冷酷ざんにんれいこく

  atrocious and cold-blooded, cruel, brutal, merciless

• 過酷事故かこくじこ

  severe accident (esp. relating to a nuclear reactor)

• 惨酷さんこく

  atrocity, cruelty, brutality

• 酷悪こくあく

  inhuman, wicked, evil

• 酷薄無情こくはくむじょう

  cold-hearted, merciless, ruthless