Wiktionary
unsustained
a. Not sustained. alt. Not sustained.
Usage examples of "unsustained".
The more solitary, the more friendless, the more unsustained I am, the more I will respect myself.
A flame burst from the sticks, unsustained by them, unconsuming: his own power given freely.
In IAD, complaints were classified at the end as sustained, unsustained or unfounded.