When a nasty is summoned by a lich, and its monster type has a zombie counterpart, it will instead be replaced by that zombie counterpart.

Zombies get weaker every time they revive, and possibly eventually get to a point where they just stop reviving.

Corpses dropped by zombies are always or often cursed. Removing the curse from them makes them less likely to revive. This could even be made as strict as every time a zombie drops a corpse and a revival timer is actually set on it (as opposed to a rotting-away timer), it is made cursed.

A new magical candle object. Zombie corpses within its light radius will not revive.

There is some interaction you can do at an altar when you bring a zombie corpse there (not sacrificing it, since it will be too old) that sets the soul of the creature free, which will stop it from reviving.