adjective. Characterized by, acting with, or suggesting stealth or a desire to avoid discovery; surreptitious: synonym: secret.

Stolen; obtained by theft.

Stealthy; thief-like.

adjective. Stolen; obtained or characterized by stealth; sly; secret; stealthy.

adjective. stealthy

adjective. Exhibiting guilty or evasive secrecy.

adjective. marked by quiet and caution and secrecy; taking pains to avoid being observed

adjective. secret and sly or sordid

"She must have heard my steps on the wood stairs, because by the time I walked through the door, she was sitting on the floor near the bed, looking at me with an expression of furtive innocence."

concealed  covert  

assertive  

apprehensive  cautious  hesitant  reluctant  resentful  

artful  back-door  backstairs  calculating  chiseling