Synonyms and related words :
a rebours, against the grain, alternately, arsy-varsy, back and forth, backward and forward, backwards, backwards and forwards, bottom side up, bottom up, by contraries, contra, contrarily, contrariously, contrariwise, contrary, contrawise, conversely, head over heels, heels over head, in flat opposition, inversely, just the opposite, mutatis mutandis, nay rather, on the contrary, oppositely, otherwise, over, per contra, quite the contrary, rather, reciprocally, reversed, seesaw, to and fro, to the contrary, topsy-turvy, tout au contraire, turned around, upside down