You searched for: “undemonstrable
undemonstrable (adjective) (not comparable)
Not capable of showing or presenting fuller evidence: The suppositions were undemonstrable, undefinable, and refutable as far as Mrs. Smith could judge.
This entry is located in the following units: -able (page 38) demonstra- (page 1) monstro-, monstr-, mone-, monu-, moni- (page 4)