Synonyms:
- Bolshevik,
- Jacobin,
- Wobbly,
- anarchist,
- anarcho-syndicalist,
- at the height,
- at the limit,
- extreme,
- extreme left-winger,
- extremist,
- fanatic,
- far out,
- furthest,
- greatest,
- kinky,
- left-wing extremist,
- lunatic fringe,
- mild radical,
- most,
- nihilist,
- outre,
- parlor Bolshevik,
- parlor pink,
- pink,
- pinko,
- rabid,
- radical,
- red,
- revolutional,
- revolutionary,
- revolutionist,
- sans-culotte,
- subversive,
- syndicalist,
- too much,
- ultra-ultra,
- ultraist,
- utmost,
- uttermost,
- way out,
- yippie