Certain
Certain adjective - Having been established and usually not subject to change.
Usage example: a certain percentage of the profits will go to charity
Unchangeable and certain are semantically related. In some cases you can use "Unchangeable" instead an adjective "Certain".
Unchangeable
Unchangeable adjective - Not capable of changing or being changed.
Certain and unchangeable are semantically related. Sometimes you can use "Certain" instead an adjective "Unchangeable".
Mutual synonyms
Related pairs
- set and certain
- set and unchangeable
- firm and certain
- firm and unchangeable
- determined and certain
- determined and unchangeable
- fixed and certain
- fixed and unchangeable
- positive and certain
- positive and unchangeable
- established and certain
- established and unchangeable
- confirmed and certain
- confirmed and unchangeable
Both words in one sentence
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If the Joker's insanity isn't an unchangeable absolute in The DCU, nothing is certain.
Source: Badass Decay - There are concepts that are popular and virtually unchangeable (personalities, speech patterns, love of spaghetti), but much of what makes a fluffy pony is subject to the creator (size, whether certain subspecies exist, what the universe of their story is like).
Source: Web Original / Fluffy Pony
Cite this Source
Unchangeable and Certain. (2016). Retrieved 2026, July 22, from https://thesaurus.plus/related/certain/unchangeable
Certain & Unchangeable. N.p., 2016. Web. 22 Jul. 2026. <https://thesaurus.plus/related/certain/unchangeable>.
Unchangeable or Certain. 2016. Accessed July 22, 2026. https://thesaurus.plus/related/certain/unchangeable.
Google Ngram Viewer shows how "certain" and "unchangeable" have occurred on timeline