Search Result for "undetected": 
Wordnet 3.0

ADJECTIVE (1)

1. not perceived or discerned;
- Example: "they feared some undetected trace of poison"
- Example: "she looked around to be sure her faux pas was undetected"



WordNet (r) 3.0 (2006):

undetected
    adj 1: not perceived or discerned; "they feared some undetected
           trace of poison"; "she looked around to be sure her faux
           pas was undetected" [ant: detected]