unfattable

English

Etymology

From un- +‎ fat +‎ -able.

Adjective

unfattable (comparative more unfattable, superlative most unfattable)

1. (archaic) That cannot be fattened; unfattenable.
   • 1803, The Farmer's Magazine, volume 4, page 399:

     Hogs are also advantageous, when they can be brought through the winter without the ravages of any annual distemper; but where they are in a broken, unequal, and consequently unfattable state, dinmonting them becomes necessary […]