Assumption and Assertion

Related words

Assumption noun - Something taken as being true or factual and used as a starting point for a course of action or reasoning.

Usage example: your argument is faulty because it's based on erroneous assumptions

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Assertion and assumption are semantically related in proposition topic. In some cases you can use "Assertion" instead a noun "Assumption".

Nearby Words: assume, assumed, assumptive

Assertion noun - An idea or opinion that is put forth in a discussion or debate.

Usage example: made the unlikely assertion that gravity affects light

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Assumption and assertion are semantically related in proposition topic. Sometimes you can use "Assumption" instead a noun "Assertion".

common	common assumption	common assertion
certain	certain assumption	certain assertion
original	original assumption	original assertion
initial	initial assumption	initial assertion
Other adjectives: popular, logical, wrong, unfortunate, false, implicit, odd, last, opposite.

Cite this Source

Assertion and Assumption. (2016). Retrieved 2026, August 14, from https://thesaurus.plus/related/assumption/assertion

Assumption & Assertion. N.p., 2016. Web. 14 Aug. 2026. <https://thesaurus.plus/related/assumption/assertion>.

Assertion or Assumption. 2016. Accessed August 14, 2026. https://thesaurus.plus/related/assumption/assertion.

Google Ngram Viewer shows how "assumption" and "assertion" have occurred on timeline