Synonyms for In confidence:

• adv

  •secretly (adverb)
  • huggermugger.

• adv.

  •confidentially (adverb)
  • covertly,
  • off the cuff,
  • sub rosa,
  • behind closed doors.
  •privately (adverb)
  • alone.
  •secretly (adverb)
  • in camera,
  • clandestinely,
  • privily,
  • on the quiet,
  • unobserved,
  • behind someone's back,
  • in secret,
  • quietly,
  • intimately,
  • by stealth,
  • slyly,
  • furtively,
  • underhandedly,
  • stealthily,
  • hush-hush,
  • insidiously,
  • under the table,
  • obscurely,
  • in holes and corners,
  • surreptitiously,
  • in strict confidence,
  • on the qt,
  • on the sly.

• Other synonyms:

  •adj.
  • personally.
  •a. & adv.
  • not to be quoted,
  • within these four walls.
  •adv
  • eyes-only,
  • off the record,
  • privately,
  • secretly,
  • between ourselves,
  • between us,
  • don't breathe a word,
  • hushedly,
  • not for publication,
  • o,
  • for no other ears.
  •adv.
  • in on the ground floor.
  •n.
  • confidentially,
  • between you and me.

Antonyms for In confidence:

• adv.

  • confidentially
    commonly, openly, publicly, Familiarly.