Conjecture
Conjecture noun - An opinion or judgment based on little or no evidence.
Usage example: the many conjectures about the true identity of Jack the Ripper
Theory is a synonym for conjecture in guess topic. In some cases you can use "Theory" instead a noun "Conjecture", when it comes to topics like belief, opinion, speculation. popular alternative
Theory
Theory noun - An idea that is the starting point for making a case or conducting an investigation.
Usage example: set out to prove her theory that people can't really taste any difference between colas, so they buy according to the product's image
Conjecture is a synonym for theory in hypothesis topic. You can use "Conjecture" instead a noun "Theory", if it concerns topics such as belief, opinion, guess. popular alternative
Mutual synonyms
How words are described
| wild | wild conjecture | wild theory |
| prevailing | prevailing conjecture | prevailing theory |
| above | above conjecture | above theory |
| basic | basic conjecture | basic theory |
| Other adjectives: scientific. | ||
Both words in one sentence
- Because the show often presented offbeat subjects and controversial theories, each episode's opening credits include a verbal disclaimer about the potentially conjecturable nature of the evidence and theories to be presented:This series presents information based in part on theory and conjecture.
Source: Series / In Search Of -
The Moon Is a Harsh Mistress included a conspiracy theorist as an aversion, as he disdains the conjecture that passes for 'theory'.
Source: Conspiracy Theorist -
When Luke and Mara find their remains (only identifiable as a Jedi and a Chiss by their weapons), the best theory they can conjecture is that the Jedi was defending the ship against a Chiss invader.
Source: Literature / Outbound Flight
Cite this Source
Theory and Conjecture. (2016). Retrieved 2026, July 20, from https://thesaurus.plus/related/conjecture/theory
Conjecture & Theory. N.p., 2016. Web. 20 Jul. 2026. <https://thesaurus.plus/related/conjecture/theory>.
Theory or Conjecture. 2016. Accessed July 20, 2026. https://thesaurus.plus/related/conjecture/theory.
Google Ngram Viewer shows how "conjecture" and "theory" have occurred on timeline