不正規 ふせいき Meanings Noun irregularity Kanji 不 un-. Read as フ. 正 correct. Read as セイ. 規 rule. Read as キ. Words containing 不正規 不正規軍 (ふせいきぐん) irregular forces 不正規戦 (ふせいきせん) unconventional warfare Jinuma: Japanese Dictionary · Word lists