落胆 luòdǎn to be scared stiff Origin Definitions Defs Strokes Stroke Words Sentences Sents 落 luò verbparticle to fall to fall; to drop; to go down; (of the sun or moon) to set; (of a tide) to go out; to decline; to sink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.