1 to be worthy of

2 to deserve to be called

3 to prove oneself to be

1 to feel guilty

2 to feel ashamed of oneself

3 to be remorseful

1 ashamed

1 lit. look into one's heart, no shame (idiom); with a clear conscience

1 to be ashamed to face (sb)

2 to feel bad about having failed (sb)

1 not ashamed to learn from subordinates (idiom)

1 no shame, no subterfuge (idiom); just and honorable

2 upright and above board

1 lit. look into one's heart, no shame (idiom); with a clear conscience

1 ashamed and unable to show one's face (idiom)

1 lit. look into one's heart, no shame (idiom); with a clear conscience