3 examples of unsustainable in sentences

His weapon is an envenomed arrow, full of deadly poison, which he shooteth suddenly, and feareth not: a weapon which by no force can be resisted, by no art declined, whose impression is altogether inevitable and unsustainable.

Make what use of it you willI care for nothing now, but to get rid of the dd, unsustainable secret, and that is done.

illusive, illusory; delusive; mock, ideal &c (imaginary) 515; spurious &c 545; deceitful &c 544; perverted. controvertible, unsustainable; unauthenticated, untrustworthy. exploded, refuted; discarded.

3 examples of  unsustainable  in sentences