noun, American English - a vehicle that moves down an icy track at great speed; a winter sport in which teams race down an ice-covered track in a small, streamlined vehicle with runners
adjective - too large or too small in comparison to something else, not balanced or fair
adjective - feeling sad or without confidence because something was difficult or did not go well.
adjective - claimed to be true or real without definitive proof
noun, British English, informal - something that is considered silly, nonsense, or worthless
adjective - able to send back light, heat, sound, etc., from a surface