thievishly
/ˈθiːvɪʃli/
adverb
- In a manner that suggests stealing or dishonesty; sneakily or furtively.
- She glanced thievishly around the room before taking the last piece of cake when no one was watching.
- He thievishly slipped the note into his pocket, not wanting anyone to see what it said.
- The raccoon moved thievishly toward the open cooler, hoping to grab a sandwich.