INCONSIST'ENCE INCONSIST'ENCY, noun [in and consistence.] 1. Such opposition or disagreement as that one proposition infers the negation of the other; such contrariety between things that both cannot subsist together. There is a perfect inconsistency between that which is of debt and that which is of free gift. 2. Absurdity in argument or narration; argument or narrative where one part destroys the other; self-contradiction. 3. Incongruity; want of agreement or uniformity; as the inconsistency of a man with himself. 4. Unsteadiness; changeableness.
Source: Webster's 1828 American Dictionary ↗ · public-domain · returned verbatim, no AI