The quality of being changeable or subject to alteration. The mutability of the weather in the region makes it difficult to plan outdoor events.
The capability of a data structure, variable, or object to be modified after its creation; the property of being mutable in computing. Immutability in functional programming contrasts with the mutability of objects in imperative languages.
The tendency of a gene, organism, or genome to undergo mutation. The high mutability of RNA viruses makes it challenging to develop long-lasting vaccines.