Wiktionary
indispensible
a. (misspelling of indispensable English)
Usage examples of "indispensible".
Painful experiments have played no indispensible part in the discovery of anaesthesia.
But this being locked, hope, the only balm of affliction, forsook her, and had she not felt the indispensible necessity of actual exertion, this new disappointment would have overthrown her purpose.
Though he was mostly considered a pain in the lower extreme, he had two indispensible talents: He could analyze culture from small scraps of evidence.