a. 1. Capable of being convinced or won over. [ 1913 Webster ]
2. Capable of being confuted and disproved by argument; refutable. [ Obs. ] Sir T. Browne. [ 1913 Webster ]
a. [ L. inconvincibilis. See In- not, and Convince. ] Not convincible; incapable of being convinced. [ 1913 Webster ]
None are so inconvincible as your half-witted people. Gov. of the Tongue. [ 1913 Webster ]