noun
unusual clothing; strange outfit; prohibited dress
Refers to clothing that is unconventional, strange, or against a dress code. The 'prohibited form of dress' sense is often used in contexts like school rules or formal settings.
その学校では異装は禁止されている。
Unusual clothing is prohibited at that school.
彼の異装はパーティーで目立っていた。
His strange outfit stood out at the party.