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What is the opposite of “infallibly”?

What is the antonym of “infallibly”?

The antonyms of infallibly are fallibly and erroneously. The antonyms fallibly and erroneously convey a lack of certainty or accuracy. It implies that something is not always correct or accurate.

Brief Definitions of the Antonym(s)

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


Capable of making mistakes or errors; not infallible.


Even the most experienced doctors can diagnose a patient fallibly.


In a mistaken or incorrect way; containing an error.


The news report erroneously claimed that the earthquake had caused a tsunami.

How are these antonyms different from each other?

  • 1Fallibly describes the ability to make mistakes, while erroneously describes the presence of a mistake.
  • 2Fallibly is a complementary antonym, while erroneously is a gradable antonym.

Good things to know

  • 1Academic Writing: Use these antonyms in academic writing to express the limitations of research or findings.
  • 2Problem Solving: Incorporate these antonyms in problem-solving discussions to consider alternative solutions.
  • 3Critical Thinking: Utilize these antonyms in critical thinking exercises to evaluate arguments and evidence.

Remember this!

The antonyms have distinct nuances: Fallibly describes the ability to make mistakes, while erroneously describes the presence of a mistake. Use these words in academic writing, problem-solving discussions, and critical thinking exercises to express limitations, consider alternative solutions, and evaluate arguments and evidence.

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