The Collaborative International Dictionary
Impersuasible
Impersuasible \Im`per*sua"si*ble\, a. [Pref. im- not +
persuasible: cf. OF. impersuasible.]
Not persuasible; not to be moved by persuasion; inflexible;
impersuadable.
--Dr. H. More. -- Im`per*sua`si*bil"i*ty, n.
Wiktionary
impersuasible
a. Not persuasible; not to be moved by persuasion.