WordNet sense 1 (a kind of pain such as that caused by a wound or a burn or a sore):

smartness, smarting

WordNet sense 2 (be the source of pain):

ache, hurt

WordNet sense 3 (in an extreme degree):

intense

WordNet sense 4 (characterized by quickness and ease in learning):

bright

WordNet sense 5 (acting or moving or capable of acting or moving quickly):

fast

WordNet sense 6 (elegant and stylish):

chic, voguish

WordNet sense 7 (having elegance or taste or refinement in manners or dress):

stylish

WordNet sense 8 (showing self-interest and shrewdness in dealing with others):

canny, clever

WordNet sense 9 (marked by practical hardheaded intelligence):

astute, sharp, shrewd

WordNet sense 10 (improperly forward or bold):

fresh, impertinent, impudent, overbold, sassy, saucy, wise

WordNet sense 11 (used of temperament or behavior; lacking restraint or modesty):

forward

WordNet sense 12 (operating with minimal human intervention; independent of external control):

automatic