WordNet sense 1 (subdued or brought low in condition or status):

broken, low, crushed, humbled

WordNet sense 2 (marked by meekness or modesty; not arrogant or prideful):

humble

WordNet sense 3 (made to feel uncomfortable because of shame or wounded pride):

embarrassed, mortified

WordNet sense 4 (feeling shame or guilt or embarrassment or remorse):

ashamed