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What is the opposite of “buoyancy”?

What is the antonym of “buoyancy”?

The antonyms of buoyancy are heaviness, sinking, and pessimism. These words convey the opposite meaning of buoyancy, which is the ability to float or remain afloat in a liquid or gas.

Brief Definitions of the Antonym(s)

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


The state or quality of being heavy; having a weight greater than usual.


The heaviness of the package made it difficult to carry.


The act or process of descending or going down below the surface of a liquid or soft substance.


The sinking of the ship was caused by a large hole in the hull.


A tendency to see the worst aspect of things or believe that the worst will happen.


His pessimism about the future made him reluctant to take any risks.

How are these antonyms different from each other?

  • 1Heaviness refers to the weight of an object, while buoyancy refers to its ability to float.
  • 2Sinking is the opposite of floating, while buoyancy is the ability to remain afloat.
  • 3Pessimism is a negative outlook on life, while buoyancy is a positive quality that allows one to stay afloat.

Good things to know

  • 1Science: Use buoyancy and sinking in physics or chemistry classes to explain the properties of liquids and gases.
  • 2Emotions: Incorporate pessimism in conversations to discuss negative emotions or attitudes.
  • 3Motivation: Use buoyancy to inspire others to stay positive and resilient in the face of challenges.

Remember this!

The antonyms of buoyancy are heaviness, sinking, and pessimism. These words have distinct meanings: Heaviness refers to weight, sinking is the opposite of floating, and pessimism is a negative outlook on life. Use these words in different contexts such as science, emotions, and motivation to enhance your vocabulary and communication skills.

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