Select the most appropriate synonym to replace the italicised word.

A shadow of guilt darkened his eyes

remorse

The most appropriate synonym to replace the italicised word "guilt" is remorse.

• Guilt is a feeling of responsibility or regret for something wrong that one has done.
• Remorse is a feeling of deep regret or guilt for something wrong that one has done.

The other words do not have the same meaning as "guilt".

• Remorselessness means the absence of remorse.
• Innocence means the state of being free from guilt or sin.
• Impenitence means the refusal to feel or express remorse for one's wrongdoing.