Synonyms for One-party systems:

• n.

  •fascism (noun)
  • despotism,
  • bureaucracy,
  • regimentation,
  • racism,
  • party government,
  • authoritarianism,
  • totalitarianism,
  • absolutism,
  • one-party system,
  • nazism,
  • autocracy.

Antonyms for One-party systems:

• n.

  • fascism
    democracy.