WordNet sense 1 (a kind of pain; something as sudden and painful as being stung):

sting

WordNet sense 2 (causing or experiencing a painful shivering feeling as from many tiny pricks):

tingling, prickling

WordNet sense 3 (causing physical or psychological pain):

painful

WordNet sense 4 ((of speech) harsh or hurtful in tone or character):

cutting, edged

WordNet sense 5 (lacking kindness):

unkind