On the sly synonyms | adverbs

Synonyms for On the sly as an Adverb

• furtively

  clandestine, in secret
• secretly

  clandestine, in secret
• stealthily

  clandestine, in secret
• covertly

  secretly, in secret
• on the quiet

  clandestine, secretly
• clandestinely

  clandestine, in secret
• surreptitiously

  secretly, in hidden manner
• by stealth

  in hidden manner
• privately

  secretly, in hidden manner
• in secret

  in hidden manner
• sub rosa

  in hidden manner
• slyly
• quietly
• behind closed doors
• in camera
• on the QT

  secret, sneaky
• hush-hush

  secret, sneaky
• underhandedly

  secretly
• under cover
• under the counter
• clandestine

  secret, sneaky
• personally
• confidentially
• in confidence
• unobserved
• under wraps

  secret, sneaky
• undercover

  secret, sneaky
• wildcat
• in holes and corners
• intimately
• obscurely
• in strict confidence
• insidiously
• privily
• under the table
• sub-rosa
• sneakily
• on the side
• incognito
• quiet
• in petto
• behind the back
• in private
• behind your back
• behind back
• behind the scenes
• conspiratorially
• off the record
• without your knowledge
• o