From Wiktionary, the free dictionary
From un- + consume + -able.
unconsumable (not comparable)
- Not able to be consumed.
1988 April 8, Jonathan Rosenbaum, “The Importance of Being Perverse”, in Chicago Reader[1]:The film aspires […] to exist and to function as a nonobject: ungraspable, intractable, unconsumable.
