Definition of ultra in English:

ultra

Syllabification: ul·tra
Pronunciation: /ˈəltrə
 
/
informal

noun

  • An extremist.
    More example sentences
    • Maybe there will be some attempted ideological putsch of Blairite ultras to come.
    • Today, Eureka has been taken over as much by those wishing Australia to declare itself a republic as by hard core left-wing unions and right-wing Nationalist ultras.
    • Bush advisers are quick to point out that the President is focusing on far more than GOP ultras.

adverb

[as submodifier] Back to top  
  • Very; extremely: the play was not just boring, it was ultra boring

Origin

early 19th century: an independent usage of ultra-, originally as an abbreviation of French ultra-royaliste.

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