Synonyms & Antonyms of assert

1 to state clearly and strongly
  • a superpatriot who is never afraid to assert her allegiance to flag and country

Synonyms for assert

Words Related to assert

Near Antonyms for assert

2 to state (something) as a reason in support of or against something under consideration
  • asserted that a new roof would be necessary if the church was to remain open

Synonyms for assert

Words Related to assert

3 to state as a fact usually forcefully
  • vigorously asserted that what passes for art these days is absolute rubbish

Synonyms for assert

Words Related to assert

Phrases Synonymous with assert

Near Antonyms for assert

Antonyms for assert

See the Dictionary Definition 

Frequently Asked Questions About assert

How is the word assert distinct from other similar verbs?

Some common synonyms of assert are affirm, avow, declare, and protest. While all these words mean "to state positively usually in anticipation of denial or objection," assert implies stating confidently without need for proof or regard for evidence.

asserted that modern music is just noise

When could affirm be used to replace assert?

The words affirm and assert can be used in similar contexts, but affirm implies conviction based on evidence, experience, or faith.

affirmed the existence of an afterlife

When might avow be a better fit than assert?

The synonyms avow and assert are sometimes interchangeable, but avow stresses frank declaration and acknowledgment of personal responsibility for what is declared.

avowed that all investors would be repaid in full

In what contexts can declare take the place of assert?

While in some cases nearly identical to assert, declare stresses open or public statement.

declared her support for the candidate

When is it sensible to use protest instead of assert?

While the synonyms protest and assert are close in meaning, protest emphasizes affirming in the face of denial or doubt.

protested that he really had been misquoted

Learn More About assert

Time Traveler for assert

Time Traveler

The first known use of assert was circa 1604

See more words from the same year

Thesaurus Entries Near assert

assent (to)



See More Nearby Entries 

Cite this Entry

“Assert.” Thesaurus, Merriam-Webster, Accessed 28 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

More from Merriam-Webster on assert

Nglish: Translation of assert for Spanish Speakers

Britannica English: Translation of assert for Arabic Speakers


Test Your Vocabulary

Name That Color

  • a light greenish blue color
  • Name that color:
True or False

Test your knowledge - and maybe learn something along the way.

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!