How to Say "unitarian" in Spanish
The Spanish word for “unitarian” is “unitario” — C1 level.
English → SpanishC1
nounC1formal
a member of a 19th-century political party in the Río de la Plata region

Examples
El conflicto entre unitarios y federales duró muchos años.
The conflict between Unitarians and Federals lasted many years.
Nouns for People
When used as a noun to describe a person, it follows the same rules as adjectives: 'el unitario' (the man) or 'la unitaria' (the woman).
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