noun
feelings of guilt; guilty conscience
Refers to the emotional state of feeling guilty or having a guilty conscience. Often used in psychological or everyday contexts.
彼は罪悪感にさいなまれている。
He is tormented by feelings of guilt.
罪悪感を感じる必要はないよ。
You don't need to feel guilty.
Compound of 罪悪 (sin, crime) and 感 (feeling). The exact historical derivation is uncertain, but the word is a modern Sino-Japanese coinage for 'guilt feelings'.