LATIN DICTIONARYLexicon Latīnum
noun · masculinefirst declension

rationalista

rationalista m (genitive rationalistae)

Meaning

  1. New Latinmasculinerationalist (a proponent of rationalism)
    Reprobo pariter eam Scripturae sanctae diiudicandae atque interpretandae rationem, quae, Ecclesiae traditione, analogia fidei et Apostolicae Sedis normis posthabitis, rationalistarum comentis inhaeret, et criticem textus velut unicam supremamque regulam haud minus licenter quam temere amplectitur.(Can we date this quote?), Pope S. Pio X, Oath against Modernism, Associação Cultural Montfort:

Declension

declension
formsingularplural
nominativerationalistarationalistae
genitiverationalistaerationalistārum
dativerationalistaerationalistīs
accusativerationalistamrationalistās
ablativerationalistārationalistīs
vocativerationalistarationalistae

Origins

By surface analysis, ratiōnālis + -ista.

Quick answers

What does rationalista mean in Latin?
rationalista, a noun, means “rationalist (a proponent of rationalism)”.
What is the genitive of rationalista?
The genitive singular is rationalistae. rationalista is masculine, first declension.