Believable
Believable adjective - Worthy of being accepted as true or reasonable.
Uncommon is an antonym for believable.
Uncommon
Both words in one sentence
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This is a little more believable, though, as performance artists (, extras, costume-party-goers, and people who just feel like dressing that way) are not an uncommon sight in a major city.
Source: Series / Lost in Austen - It's not that it's impossible for a Russian person to have an unusual name; it's that you have to know the naming trends and fashions of whatever time you're setting your work in to make a believable choice when picking said uncommon name.
Source: Analysis / Gratuitous Russian
Cite this Source
Uncommon and Believable. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/believable/uncommon
Believable & Uncommon. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/believable/uncommon>.
Uncommon or Believable. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/believable/uncommon.
Google Ngram Viewer shows how "believable" and "uncommon" have occurred on timeline