お利口 おりこう Also written お利巧 Meanings な-adjective, Noun well-behaved (esp. of children and pets); obedient; good See also: 利口 (りこう). Kanji 利 benefit 口 mouth. Read as コウ. Words containing お利口 お利口さん (おりこうさん) well-behaved child Jinuma: Japanese Dictionary · Word lists