Meaning & use
assertion
A confident and forceful statement of fact or belief, often made without providing proof.
See it in a sentence
The scientist challenged the assertion that the new drug had no side effects.
His assertion that he was innocent convinced few members of the jury.
A note on using this word
An assertion is stated with confidence but does not necessarily include supporting evidence, unlike a proven fact.
Words with a similar meaning
claimdeclaration
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Make it your own
Write a sentence using “assertion”, then compare your use with the examples above.
Your draft stays on this page and is not sent anywhere.