plain-clothes
adjective/ˌpleɪn ˈkləʊðz/, /ˌpleɪn ˈkləʊz/
/ˌpleɪn ˈkləʊðz/, /ˌpleɪn ˈkləʊz/
[only before noun]- (of police officers on duty) wearing ordinary clothes, not uniform
- plain-clothes police officers
Check pronunciation:
plain-clothes