大胆 dàdǎn HSK5 bold Definitions Defs Origin Strokes Stroke Words Sentences Sents dàdǎn bold · brazen · to venture 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult胆 膽 dǎn nounadjective courage Bravery or guts; derived from the traditional Chinese belief that the gallbladder is the source of a person's courage.dàdǎn Dadan Island 大 dà adjective big big; large; great; vast; high in scale or intensity; (of a person) old; adult胆 膽 dǎn noun gallbladder The gallbladder; a bitter organ located near the liver that aids in digestion; also referred to as 胆囊 dǎnnáng.