lurkingly

/ˈlɜrkɪŋli/
adverb
  1. In a secret, hidden, or sneaky manner.
    • The fox moved lurkingly through the tall grass.
    • He lurkingly watched the conversation from the corner of the room.
    • The spy lurkingly followed the target through the market.
Antonyms
What does "lurkingly" mean? | whatsthatwordmean | whatsthatwordmean