Search Result for "impermissible": 
Wordnet 3.0

ADJECTIVE (2)

1. not permitted;
- Example: "impermissible behavior"

2. not allowable; 



The Collaborative International Dictionary of English v.0.48:

Impermissible \Im`per*mis"si*ble\, a.
   Not permissible.
   [1913 Webster]


WordNet (r) 3.0 (2006):

impermissible
    adj 1: not permitted; "impermissible behavior" [ant:
           allowable, permissible]
    2: not allowable