A person who believes that faith alone (as opposed to good deeds) brings salvation.(noun)
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Use "solifidian" in a sentence
"Unlike Newman, who aimed at reconciling differences, and to whom the Lutheran formula was but "a paradox or a truism", Ward repudiated the "solifidian" view as an outrage on the Divine sanctity; it was "a type of Antichrist", and in sound reason no better than Atheism."
"How deeply the solifidian doctrine had penetrated into the very bosom of the church was revealed by the storminess of the debate."