on the Q.T.

1. Secretly, as in They told her on the Q.T. that she was being promoted. This slangy term, in which Q.T. is an abbreviation for “quiet,” was first recorded in 1884.

Related Words

• buried 
• clandestine 
• concealed www.thesaurus.com
• covered www.thesaurus.com
• covert 
• dark 
• invisible 
• latent 
• mysterious 
• obscure 
• private 
• secluded 
• underground 
• undisclosed 
• unknown