Synonyms and related words :
arsy-varsy, ass over elbows, back-to-front, backwards, capsized, changeable, chiastic, commutable, commutative, convertible, equal, equalizing, equivalent, even, everted, exchanged, give-and-take, hyperbatic, inside out, interchangeable, interchanged, introverted, invaginated, inversed, inverted, mutual, outside in, palindromic, permutable, reciprocal, reciprocating, reciprocative, resupinate, retaliatory, retroverted, returnable, reversed, standard, swapped, switched, topsy-turvy, traded, upside-down, wrong side out