forward Antonyms

backward reverse backwards back past rearwards underside verso vitiate timid waylay withstander yellow decelerate hold back back burner fullback blate unaltered tail end rear end unlax feed back thwart throw rudimentary revertible reverted reversionary reverser reversing reversed returning rump scupper sternforemost slow slacken shy shortstop shameful shag self-conscious retrospectively considerably behind at the back of reversive reverse gear retral recirculation