"read-only-ness" is much more of a mouthful than "immutable"! Generally immutability is also a programming style that comes with language constructs and effici

"read-only-ness" is much more of a mouthful than "immutable"! Generally immutability is also a programming style that comes with language constructs and efficient data structures. Whereas 'read-only' (to me) is just a way of describing a variable or object.