[ See De-; Mount. ] Capable of being dismounted; -- said of a form of rim, for an automobile wheel, which can be removed with its tire from the wheel. [ Webster 1913 Suppl. ]
a. [ Pref. in- not + surmountable: cf. F. insurmountable. ] Incapable of being passed over, surmounted, or overcome; insuperable;
Hope thinks nothing difficult; despair tells us that difficulty is insurmountable. I. Watts.
n. The state or quality of being insurmountable; insurmountability. [ 1913 Webster ]
a. Such as can be mounted. [ 1913 Webster ]
a. [ Cf. F. surmontable. ] Capable of being surmounted or overcome; superable. --
a. Insurmountable. Locke. [ 1913 Webster ]