Noah Webster's Dictionary 1. (n.) Stubbornness; persistency; a fixedness in will, opinion, or resolution that can not be shaken at all, or only with great difficulty; firm and usually unreasonable adherence to an opinion, purpose, or system; unyielding disposition; contumacy. 2. (n.) The quality or state of being difficult to remedy, relieve, or subdue; as, the obstinacy of a disease or evil. Int. Standard Bible Encyclopedia OBSTINACY ob'-sti-na-si. See HARDEN.

Multi-Version Concordance Obstinacy (1 Occurrence) Mark 16:14 Later still He showed Himself to the Eleven themselves whilst they were at table, and He upbraided them with their unbelief and obstinacy in not having believed those who had seen Him alive. (WEY)