Certain
Certain adjective - Known but not named.
Unrepeatable and certain are semantically related In some cases you can use "Unrepeatable" instead an adjective "Certain".
Unrepeatable
Unrepeatable adjective - Not able or fit to be repeated or quoted.
Certain and unrepeatable are semantically related in alone topic. You can use "Certain" instead an adjective "Unrepeatable".
Mutual synonyms
Both words in one sentence
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Yet further are the optional party members, many of which can only be gotten in certain unrepeatable missions and may not ask to join you.
- Two monsters, the blue-clothed Goblins and the Thunder Drakes, only appear in certain unrepeatable storyline missions, which means that Blue Mages need to learn the abilities from them and Hunters then need to capture them for the Morphers to use.
Cite this Source
Unrepeatable and Certain. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/certain/unrepeatable
Certain & Unrepeatable. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/certain/unrepeatable>.
Unrepeatable or Certain. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/certain/unrepeatable.
Google Ngram Viewer shows how "certain" and "unrepeatable" have occurred on timeline