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1. Markedly new or introducing fundamental change
   "a revolutionary discovery";
   - radical
    
2. Of or relating to or characteristic or causing an axial or orbital turn
   - rotatory
    
3. Relating to or having the nature of a revolution
   "revolutionary wars"; "the Revolutionary era"
    
4. Advocating or engaged in revolution
   "revolutionary pamphlets"; "a revolutionary junta"

1. A radical supporter of political or social revolution
   - revolutionist, subversive, subverter

Derived forms: revolutionaries

See also: new

Type of: rad [informal], radical

Antonym: counterrevolutionary

Encyclopedia: Revolutionary