morally; from a moral standpoint
Adverbial use, often modifying verbs or whole clauses to indicate that an action or judgment is based on moral principles.
His actions are morally unacceptable.
Morally speaking, that cannot be called right.
noun which may take the genitive case particle 'no'
Adjectival use with の, modifying nouns to describe issues, responsibilities, or dilemmas that involve moral or ethical considerations.
This is a moral issue.
Doctors have an ethical responsibility.
道徳的 is a na-adjective meaning 'moral' in a broader sense, whereas 道徳上 is more limited to the perspective or dimension of morality, often used with の or as an adverb.
Compound of 道徳 (どうとく, 'morality') and the suffix 上 (じょう, 'from the standpoint of'). The suffix 上 is productive and attaches to nouns to form adverbial or adjectival expressions indicating a particular aspect or perspective.