† mountainerObs. [f. mountain + -er1: cf. mountaineer.] = mountaineer 1. 1598Le Roy Aristotle's Polit. v. 267 For the Mountainers were Democraticall; those of the champion countrey, Oligarchical.1692Bentley Boyle Lect. iii. 96 Being illiterate Rustics, as Mountainers always are.