Showing results for theories. Search instead for theorises.

theories

NOUN

hypothesis, belief

Synonyms

STRONGEST

approach argument assumption code concept doctrine idea ideology method philosophy plan position premise proposal provision rationale scheme speculation suspicion system thesis understanding

STRONG

base basis codification conditions conjecture dogma feeling foundation grounds guess guesswork hunch impression outlook postulate presentiment presumption shot stab supposal supposition surmise theorem

WEAK

formularization suppose systemization

Antonyms

STRONGEST

disbelief fact information reality truth

STRONG

calculation knowledge measurement proof

WEAK

certainty

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

However, throughout scientific history, tiny inconsistencies have sometimes pointed to major discoveries and revealed hidden gaps in existing theories.

From Science Daily • May 18, 2026

It begins with specious theories and disingenuous arguments advanced by people who believe themselves incapable of bigotry.

From The Wall Street Journal • May 13, 2026

But that has not stopped conspiracy theories and disinformation about vaccines and hantavirus spreading widely online -- another echo of the Covid era.

From Barron's • May 13, 2026

His mother, Melanie, who was not his legal guardian and was heavily influenced by conspiracy theories, told him to throw away his passport.

From BBC • May 13, 2026

In other words, science evolves, and it does so because theories that fail to develop, or that are unable to adapt in the face of new discoveries, are eliminated.

From "The Invention of Science" by David Wootton