Firm
Pure
Pure adjective - Free from added matter.
Both words in one sentence
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They are firm believers in kindness, compassion, peace between all beings, and all that stuff... but they also believe that if one becomes too "pure good" then they can, without warning, loop around to "pure evil".
Source: Poke the Poodle -
He flies on a cloud that only supports the pure of heart; he is a firm believer that Rousseau Was Right, always sparing his enemies and often turning them into friends.
Source: The Cape -
In other versions of the franchise he doesn't seem to mind women so much (even if he's of the firm conviction that they don't belong onboard a ship), but in the plays he reacts to women with pure disgust.
Source: Theatre / Captain Sabertooth
Cite this Source
Pure and Firm. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/firm/pure
Firm & Pure. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/firm/pure>.
Pure or Firm. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/firm/pure.
Google Ngram Viewer shows how "firm" and "pure" have occurred on timeline