alter Antonyms

quash tamp taut unmade wear widening wronging plow ahead odorize demote devalue demulsify sustain starched stagnate remain restive retain roughen ruin scotch scupper set shatter speak spoil demythologize stabilize be invariable be stable be the same be unalterable be unaltered be unchangeable be unchanging never change remain the same remain unaltered stay in the same shape be in the same shape be in the same form be in one form louse up vandalize outpoint do in stand still sabotage remain constant remain unchanged