理をもって非に落ちる りをもってひにおちる Also written りをもちてひにおちる, 理を以て非に落ちる Meanings Expression to lose an argument despite being in the right; to have the right on one's side, yet succumb to another Kanji 理 reason. Read as リ. 非 non- 落 fall. Read as おちる. Jinuma: Japanese Dictionary · Word lists