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

The Opposite(Antonym) of “unchallengable”

The antonym of unchallengable are questionable, debatable, and doubtful. These words convey a sense of uncertainty or doubt about the truth or validity of something.

Explore all Antonyms of “unchallengable”

Definitions and Examples of questionable, debatable, doubtful

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

Doubtful or uncertain; open to question or dispute.


The company's financial statements were questionable and raised concerns among investors.

Open to discussion or argument; not settled or decided.


The effectiveness of the new policy was debatable and sparked a heated debate among lawmakers.

Uncertain or skeptical about something; feeling hesitant or unsure.


She was doubtful about the accuracy of the report and decided to investigate further.

Key Differences: questionable vs debatable vs doubtful

  • 1Questionable implies that something is doubtful or uncertain and may be open to dispute.
  • 2Debatable suggests that something is open to discussion or argument and has not been settled or decided.
  • 3Doubtful conveys a sense of skepticism or uncertainty about something.

Effective Usage of questionable, debatable, doubtful

  • 1Critical Thinking: Use these antonyms to evaluate arguments and claims critically.
  • 2Academic Writing: Incorporate these words in essays and research papers to express doubt or uncertainty.
  • 3Negotiation: Utilize these antonyms in negotiations to express skepticism or hesitation.

Remember this!

The antonyms have distinct nuances: Questionable implies doubt or uncertainty, debatable suggests open to discussion or argument, and doubtful conveys skepticism or uncertainty. Use these words to enhance critical thinking, academic writing, and negotiation skills.

This content was generated with the assistance of AI technology based on RedKiwi's unique learning data. By utilizing automated AI content, we can quickly deliver a wide range of highly accurate content to users. Experience the benefits of AI by having your questions answered and receiving reliable information!