在理 Traditional form: 在理 Pinyin (reading): zàilǐ Definitions: reasonable sensible Characters: 在 - at, in, on; to exist; used to indicate the present progressive tense 理 - science, reason, logic; to manage Traditional characters: 在 - at, in, on; to exist; used to indicate the present progressive tense 理 - science, reason, logic; to manage