A Consistency

1. Local coherence.
2. Correspondence or compatibility.
3. Reliability or uniformity; the quality of being consistent.
4. The degree of viscosity of something.
5. (logic) Freedom from contradiction; the state of a system of axioms such that none of the propositions deduced from them are mutually contradictory.
6. (obsolete) Firmness of constitution or character; substantiality; durability; persistency.

Antonyms

• inconsistency