Fluent
Fluent adjective - Able to express oneself clearly and well.
Natural and fluent are semantically related. in articulate topic. In some cases you can use "Natural" instead an adjective "Fluent", when it comes to topics like effortless, free-flowing, able to speak or write.
Natural
Natural adjective - Being such from birth or by nature.
Mutual synonyms
Both words in one sentence
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In many cases it sounds fluent and natural, but in other cases it sounds very artificial (and in a few cases there's even a clear voice tone difference).
Source: Video Game / Poker Night 2 - He works with his father and brother as part of the Inter-Tribal Group, whose goal is to encourage creation of "natural" sustainable energy sources.He can speak Lakota but is not fluent.
Source: Creator / Michael Spears - Frequently, his emphasis is more on the humanities than on the natural sciences (he is probably fluent in dead languages and always handy with an apropos quotation from Aristotle, Saint Augustine, or Dante), but this is not an absolute rule.
Source: Gentleman and a Scholar
Cite this Source
Natural and Fluent. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/fluent/natural
Fluent & Natural. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/fluent/natural>.
Natural or Fluent. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/fluent/natural.
Google Ngram Viewer shows how "fluent" and "natural" have occurred on timeline