Translation

階級差別的な / 階級偏見のある / 階級差別主義者

Meaning

Classist means unfairly judging, excluding, or favoring people because of their social class, wealth, job, accent, education, or background. It is about class prejudice, not classical studies. A classist comment treats some classes as inferior.

Examples

• その発言は労働者階級の人々を見下す階級差別的なものでした。
  The remark was classist toward working-class people.
• 批評家たちはその採用基準が階級差別的だと主張しました。
  Critics argued that the hiring criteria were classist.