Enjoy learning English! with RedKiwi

What is the opposite of “infatigable”?

What is the antonym of “infatigable”?

The antonyms of infatigable are lazy, indolent, and lethargic. These words describe a lack of energy, motivation, or willingness to work.

Brief Definitions of the Antonym(s)

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

Unwilling to work or use energy; avoiding exertion or effort.


He was too lazy to clean his room, so it remained messy for weeks.

Avoiding work or physical activity out of laziness or habit; idle.


She spent most of her days lying on the couch, being indolent and unproductive.

Feeling sluggish, tired, or lacking in energy; slow-moving or inactive.


After a long day at work, he felt lethargic and didn't want to do anything else.

How are these antonyms different from each other?

  • 1Lazy implies a lack of willingness to work or use energy.
  • 2Indolent suggests a habitual avoidance of work or physical activity.
  • 3Lethargic describes a feeling of sluggishness or tiredness that affects one's ability to be active or productive.

Good things to know

  • 1Workplace: Use these antonyms to describe employees' work ethic or productivity levels.
  • 2Education: Incorporate these words in discussions about study habits or academic performance.
  • 3Health: Utilize these antonyms to describe physical or mental states of being.

Remember this!

The antonyms of infatigable describe a lack of energy, motivation, or willingness to work. Lazy implies a lack of willingness, indolent suggests a habitual avoidance, and lethargic describes a feeling of sluggishness. These words can be used in various contexts such as workplace, education, or health to describe work ethic, study habits, or physical/mental states of being.

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!