noun
sentimentalism
A tendency to indulge in or value emotion over reason, often in art, literature, or personal outlook. Can carry a slightly negative nuance of excessive emotionality.
彼の小説は感傷主義に陥りがちだ。
His novels tend to fall into sentimentalism.
感傷主義を排した冷静
We need a calm analysis that avoids sentimentalism.