bad point

(にがて) 2 meanings. 1) something I am poor at doing, 2) something I dislike. My 苦手 is rave music.
(けってん) Shortcoming. Opposite of 長所(ちょうしょ). Can be used about people (he drinks too much, she always lies) or machines (this PC is very slow and prone to crashing).   PPPTTT
(じゃくてん) Achilles heel, soft underbelly. A weakness that – while not correctable – is not a deal-breaker either.   PPPTTT
(けっかん) Defective. Have to take it back to the store.   TTT