Search Result for "undetectable": 
Wordnet 3.0

ADJECTIVE (2)

1. not easily seen;

2. barely able to be perceived;
- Example: "the transition was almost indiscernible"
- Example: "an almost insensible change"
[syn: indiscernible, insensible, undetectable]



WordNet (r) 3.0 (2006):

undetectable
    adj 1: not easily seen
    2: barely able to be perceived; "the transition was almost
       indiscernible"; "an almost insensible change" [syn:
       indiscernible, insensible, undetectable]