illeviable

from The Collaborative International Dictionary of English v.0.48
Illeviable \Il*lev"i*a*ble\, a.
   Not leviable; incapable of being imposed, or collected. [R.]
   --Sir M. Hale.
   [1913 Webster]
    
from Bouvier's Law Dictionary, Revised 6th Ed (1856)
ILLEVIABLE. A debt or duty that cannot or ought not to be levied. Nihil set 
upon a debt is a mark for illeviable. 
    

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