こっそり

こっそり
adverb
secretly; stealthily; quietly
1. secretly; stealthily; on the sly
Describes doing something quietly and secretly so as not to be noticed by others. Often implies a deliberate attempt to avoid detection.
こっそり部屋(へや)()た。
I slipped out of the room quietly.
(かれ)はこっそり手紙(てがみ)()んでいた。
He was reading the letter secretly.
(おや)()つからないようにこっそりお菓子(かし)()べた。
I ate snacks on the sly so my parents wouldn't find out.

こっそり implies intentional secrecy, often to avoid being caught or noticed.

COMMON PATTERNS:

  • こっそり〜する: to do something secretly
  • こっそりと: variant with と particle
  • こっそり()()す: to sneak out

SIMILAR EXPRESSIONS:

  • ひそかに: secretly (more literary)
  • 内緒(ないしょ)で: in secret
  • こそこそ: sneakily (often with negative connotation)