interchangeable

Capable of being interchanged.

Capable of being interchanged; admitting of exchange.

Appearing in alternate succession.

Admitting of exchange or mutual substitution.

Following each other in alternate succession.

Freely substitutable. May be swapped at will.

(mathematics, logic) such that the arguments or roles can be interchanged

capable of replacing or changing places with something else; permitting mutual substitution without loss of function or suitability