interchangeable (adj.)
- alike
- assignable
- changeable
- communicable
- commutable
- commutative
- conductive
- contagious
- convertible
- conveyable
- equal
- equivalent
- even
- exchangeable
- exchanged
- indiscernible
- indistinct
- indistinguishable
- movable
- mutual
- permutable
- portable
- reciprocal
- reciprocating
- reciprocative
- removable
- retaliatory
- returnable
- standard
- stereotyped
- substitutable
- transferable
- transmissible
- transmittable
- transportable
- transposable
- transposed
- undifferentiated
- undistinguishable
- undistinguished
- uniform
