1
: the principles of those who advocate extreme measures (such as radicalism)
2
: an instance or example of radicalism

ultraist

2 of 3

noun (2)

ul·​tra·​ist
-əə̇st
plural -s
: an adherent of ultraism : extremist, radical
the organ of the Argentine ultraists … roundly rejected Madrid's claim to chieftainshipTimes Literary Supplement
: of, relating to, or characteristic of ultraism

Word History

Etymology

Noun (2)

ultra entry 1 + -ist

First Known Use

Noun (1)

1821, in the meaning defined at sense 1

Time Traveler
The first known use of ultraism was in 1821

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Cite this Entry

“Ultraism.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ultraism. Accessed 7 Jul. 2026.

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