noun
trivialism
A philosophical or critical term for an excessive focus on trivial details, often at the expense of more important matters. Used in discussions of bureaucracy, academia, or argumentation.
彼の議論は瑣末主義に陥っていて、本質を見失っている。
His argument falls into trivialism and loses sight of the essence.
役所の瑣末
I'm fed up with the trivialism of the government office.
Compound of 瑣末 (trivial) and 主義 (principle, doctrine). The term is a calque or translation of English 'trivialism', used in philosophical and critical contexts.