uncheckable

from WordNet (r) 3.0 (2006)
uncheckable
    adj 1: incapable of being checked or restrained
    
from The Collaborative International Dictionary of English v.0.48
Uncheckable \Un*check"a*ble\, a.
   Not capable of being checked or stopped. [R.]
   [1913 Webster]
    

[email protected]