Noun: plain clothes
- Ordinary clothing as distinguished from uniforms, work clothes, clerical garb, etc.
"The undercover officer wore plain clothes to blend in with the crowd";
- civilian clothing, civilian dress, civilian garb
Type of: article of clothing, clothing, duds [informal], habiliment [archaic], threads [informal], togs [informal], vesture [archaic], wear, wearable
Encyclopedia: Plain clothes