哀叹 āitàn to lament Definitions Defs Origin Strokes Stroke Words Sentences Sents 哀 āi adjective sad (bound form) sad; tragic; doleful叹 嘆 tàn verb to sigh (bound form) To exhale deeply to express sadness, frustration, or exhaustion; to sigh. Often used in 叹气 tànqì.