Opposites

Obvious opposites like 안~/못~ are assumed and therefore not found on this list.

Active

• 열다 (to open) ↔ 닫다 (to close)
• 이기다 (to win) ↔ 지다(to lose)
• 밀다 (to push) ↔ 당기다 (to pull)
• 늘다 (to increase) ↔ 줄다 (to decrease)
• 자다 (to sleep) ↔ 깨다 / 일어나다 (to wake up)
• 성공하다 (to pass) ↔ 실패하다 (to fail)
• 죽다 (to die) ↔ 태어나다 (to be born)
• 수입하다 (to import) ↔ 수출하다 (to export)
• 나가다 (to go out) ↔ 들어오다 (to come in)
• 필요하다 (to need) ↔ 필요없다 (to not need)
• 가다 (to go) ↔ 오다 (to come)
• 알다 (to know) ↔ 모르다 (to not know)

Descriptive

• 있다 (to exist) ↔ 없다 (to not exist)
• 가능하다 (to be possible) ↔ 불가능하다 (to be impossible)
• 좋다 (to be good) ↔ 나쁘다 (to be bad)
• 약하다 (to be weak) ↔ 강하다(to be strong)
• 단순하다 (to be simple) ↔ 복잡하다 (to be complicated)
• 한산하다 (to not be crowded) ↔ 복잡하다 (to be crowded)
• 뚱뚱하다 (to be fat) ↔ 날씬하다(to be thin)
• 재미있다 (to be fun) ↔ 재미없다 (to not be fun)
• 맛있다 (to be delicious) ↔ 맛없다 (to taste bad)
• 근면하다 / 부지런하다 (to be diligent) ↔ 게으르다 (to be lazy)
• 예쁘다 (to be pretty) ↔ 못생기다 (to be ugly)
• 잘생기다 (to be good looking) ↔ 못생기다 (to be ugly)
• 건강하다 (to be healthy) ↔ 병약하다(to not be healthy)
• 행복하다 (to be happy) ↔ 슬프다(to be sad)
• 빠르다 (to be fast) ↔ 느리다(to be slow)
• 이르다 (to be early) ↔ 늦다 (to be late)
• 겸손하다 (to be humble) ↔ 거만하다 (to be arrogant)
• 사귀다 (to get together) ↔ 헤어지다 (to break up)
• 우연하다 (to do on accident) ↔ 의도하다 (to do on purpose)
• 쓸모있다(유용하다,실용적이다) (useful) ↔ 쓸모없다 (useless)
• 보수적이다 (conservative) ↔ 개방적이다 (liberal)
• 낙관하다 (to be optimistic) ↔ 비관하다 (to be pessimistic)
• 편하다 (to be comfortable) ↔ 불편하다 (to be uncomfortable)
• 충분하다 (to be sufficient) ↔ 부족하다 (to be insufficient)
• 유능하다 (to be efficient) ↔ 무능하다 (to be inefficient)
• 가짜 (fake, imitation) ↔ 진짜 (genuine)
• 진심 (sincere) ↔ 가식 (insincere)
• 최고 (best) ↔ 최악 (worst)
• 흡연구역 (smoking section) ↔비흡연구역 (non smoking section)
• 알뜰하다 (to be thrifty) ↔ 낭비하다(to be wasteful)
• 흥미롭다(관심이 있다) (to be interesting) ↔ 관심이 없다(to not be interesting)
• 믿음직하다 (to be trustworthy) ↔ 믿음직하지 않다(?) (to be untrustworthy)
• 같다 (to be the same) ↔ 다르다 (to be different)
• 바쁘다 (to be busy) ↔ 한가하다 (to be free)
• 유창하다 (to be fluent) ↔ 서투르다 (to be poor at)
• 젊다 (to be young) ↔ 늙다 (to be old)
• 가깝다 (to be close) ↔ 멀다 (to be far)
• 깨끗하다 (to be clean) ↔ 더럽다 (to be dirty)
• 길다 (to be long) ↔ 짧다 (to be short)
• 조용하다 (to be quiet) ↔ 시끄럽다 (to be noisy)
• 좋다 (to be good) ↔ 싫다 (to dislike)
• 덥다 (to be hot) ↔ 춥다 (to be cold)
• 뜨겁다 (to be hot [to the touch]) ↔ 차갑다 (to be cold [to the touch])
• 높다 (to be high) ↔ 낮다 (to be low)
• 가볍다 (to be light) ↔ 무겁다 (to be heavy)
• 넓다 (to be wide) ↔ 좁다 (to be narrow)
• 밝다 (to be bright) ↔ 어둡다 (to be dark)
• 달다 (to be sweet) ↔ 쓰다 (to be bitter)
• 안전하다 (to be safe) ↔ 위험하다 (to be dangerous)
• 맑다 (맑다) ↔ 흐리다 (to be cloudy)
• 얇다 (to be thin) ↔ 두껍다 (to be thick)
• 꽉끼다 (to be tight)↔ 헐렁하다/느슨하다(to be loose)