Noah Webster's Dictionary (n.) The quality of being insubordinate; disobedience to lawful authority.

Multi-Version Concordance Insubordination (1 Occurrence) 1 Samuel 15:23 For rebellion is as the sin of witchcraft, and stubbornness is as idolatry and teraphim. Because you have rejected the word of Yahweh, he has also rejected you from being king." (See NAS)