Assumption
Assumption noun - Something taken as being true or factual and used as a starting point for a course of action or reasoning.
Fixed idea and assumption are semantically related. In some cases you can use "Fixed idea" instead a noun "Assumption".
Fixed idea
Assumption and fixed idea are semantically related. Sometimes you can use "Assumption" instead a noun phrase "Fixed idea".
Mutual synonyms
Cite this Source
Fixed idea and Assumption. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/assumption/fixed_idea
Assumption & Fixed idea. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/assumption/fixed_idea>.
Fixed idea or Assumption. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/assumption/fixed_idea.
Google Ngram Viewer shows how "assumption" and "fixed idea" have occurred on timeline