adverb
Synonyms: secretly , by stealth, clandestinely, covertly, furtively, hugger-mugger, in camera, privately, stealthily, surreptitiously
Antonyms: aboveboard
adverb
Synonyms: secretly , by stealth, clandestinely, covertly, furtively, hugger-mugger, in camera, privately, stealthily, surreptitiously
Antonyms: aboveboard
Merriam Webster. Collegiate thesaurus English vocabulary. Английский энциклопедический словарь тезаурус. 2003