Political ideology that appeals to the interests and conceptions of the common people, often contrasting with elites. The cross-reference ポピュリズム is a common loanword synonym.
See also: ポピュリズム
That politician gained support by advocating populist policies.
大衆主義は時に複雑な問題を単純化しすぎる危険がある。
Populism sometimes risks oversimplifying complex issues.