不成功 ふせいこう Meanings な-adjective, の-adjective, Noun failure; abortive (attempt, action) Kanji 不 un-. Read as フ. 成 become. Read as セイ. 功 merit. Read as コウ. Words containing 不成功 実行不成功 (じっこうふせいこう) unsuccessful execution Jinuma: Japanese Dictionary · Word lists