Adjective has 2 senses

• dystopian(a = adj.pert) - of or pertaining to or resembling a dystopia;
Derived form noun dystopia₁

• dystopian(a = adj.all) - as bad as can be; characterized by human misery; "AIDS is one of the dystopian harbingers of the global villages"
Antonym: utopian
Derived form noun dystopia₁