Search Result for "indiscernible": 
Wordnet 3.0

ADJECTIVE (2)

1. difficult or impossible to perceive or discern;
- Example: "an indiscernible increase in temperature"

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



The Collaborative International Dictionary of English v.0.48:

Indiscernible \In`dis*cern"i*ble\, a. [Pref. in- not +
   discernible: cf. F. indiscernable.]
   Not to be discerned; imperceptible; not discoverable or
   visible.
   [1913 Webster]

         Secret and indiscernible ways.           --Jer. Taylor.
   -- In`dis*cern"i*ble*ness, n. -- In`dis*cern"i*bly, adv.
   Indiscerpibility


WordNet (r) 3.0 (2006):

indiscernible
    adj 1: difficult or impossible to perceive or discern; "an
           indiscernible increase in temperature" [ant:
           discernable, discernible]
    2: barely able to be perceived; "the transition was almost
       indiscernible"; "an almost insensible change" [syn:
       indiscernible, insensible, undetectable]