plain clothes

US /ˌpleɪn ˈkloʊðz/
UK /ˌpleɪn ˈkloʊðz/
"plain clothes" picture
1.

pakaian biasa, pakaian awam

ordinary clothes, not a uniform or special costume

:
The detective was working in plain clothes.
Detektif itu bekerja dengan pakaian biasa.
Security personnel often blend in plain clothes at events.
Anggota keselamatan sering menyamar dengan pakaian biasa di acara-acara.