低能 ていのう Also written 低脳 Meanings Noun, な-adjective low intelligence; low IQ; feeble-mindedness; imbecility Noun unintelligent person; person with a low IQ Kanji 低 low. Read as テイ. 能 ability. Read as ノウ. Words containing 低能 低能児 (ていのうじ) feeble-minded child 低能者 (ていのうしゃ) imbecile Jinuma: Japanese Dictionary · Word lists