Inconvincible

• (a.) Not convincible; incapable of being convinced.
Found on http://thinkexist.com/dictionary/meaning/inconvincible/

Inconvincible

In`con·vin'ci·ble adjective [ Latin inconvincibilis . See In- not, and Convince .] Not convincible; incapable of being convinced. « None are so inconvincible as your half-witted people.» Gov. of the Tongue.
Found on http://www.encyclo.co.uk/webster/I/37
No exact match found