noun
moral sense; sense of morality
Refers to an inner awareness of right and wrong; a somewhat formal or literary term.
彼は徳義心が強いので、不正は許せない。
He has a strong moral sense, so he cannot tolerate injustice.
教育の目的の一つは、子供たちの徳義心を育てる
One purpose of education is to cultivate children's sense of morality.
倫理観 is a broader term for one's ethical viewpoint or standards, often used in discussions of professional or societal ethics.
Compound of 徳義 (morality, moral principles) and 心 (heart, mind, spirit). The exact historical derivation is uncertain, but the word follows a common pattern for abstract moral concepts.