WordNet sense 1 (feeling or caused to feel uneasy and self-conscious):

abashed, chagrined

WordNet sense 2 (having your composure disturbed):

discomposed

WordNet sense 3 (caused to feel self-conscious and uncomfortable):

discomfited

WordNet sense 4 (made to feel uncomfortable because of shame or wounded pride):

humiliated, mortified

WordNet sense 5 (feeling shame or guilt or embarrassment or remorse):

ashamed