What is the Opposite(Antonym) of “guess”?

The Opposite(Antonym) of “guess”

The antonyms of guess are know and ascertain. The antonyms know and ascertain convey a sense of certainty or knowledge. It implies that there is no doubt or uncertainty in the information being conveyed.

Explore all Antonyms of “guess”

Definitions and Examples of know, ascertain

Learn when and how to use these words with these examples!

To have information in one's mind as a result of experience, learning, or perception.


I know how to swim because I learned it when I was young.

To find out something for certain; to make sure of something.


The detective tried to ascertain the identity of the suspect by gathering evidence.

Key Differences: know vs ascertain

  • 1Know implies having information in one's mind as a result of experience, learning, or perception.
  • 2Ascertain implies finding out something for certain or making sure of something.

Effective Usage of know, ascertain

  • 1Enhance Communication: Use know and ascertain to convey certainty or knowledge in conversations.
  • 2Academic Writing: Utilize these antonyms in academic writing to express certainty or uncertainty in research findings.
  • 3Professional Settings: Incorporate antonyms in professional settings to demonstrate expertise and confidence in one's knowledge.

Remember this!

The antonyms have distinct nuances: Know conveys a sense of having information in one's mind, while ascertain implies finding out something for certain. Use these words to enhance communication, academic writing, and professional settings by conveying certainty or expertise.

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