Noah Webster's Dictionary 1. (n.) The quality or condition of being unstable; want of stability, firmness, or steadiness; liability to give way or to fail; insecurity; precariousness; as, the instability of a building. 2. (n.) Lack of determination of fixedness; inconstancy; fickleness; mutability; changeableness; as, instability of character, temper, custom, etc.

Multi-Version Concordance Instability (1 Occurrence) Jeremiah 23:32 Lo, I 'am' against the prophets of false dreams, An affirmation of Jehovah, And they recount them, and cause my people to err, By their falsehoods, and by their instability, And I -- I have not sent them, Nor have I commanded them, And they are not at all profitable to this people, An affirmation of Jehovah. (YLT)