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What is the opposite of “massless”?

What is the antonym of “massless”?

The antonyms of massless are heavy, weighty, and massive. These antonyms describe objects with a significant amount of mass or weight.

Brief Definitions of the Antonym(s)

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


Weighing a lot; having a large mass.


The box was too heavy for her to lift alone.


Having a significant amount of weight or mass.


The elephant's footsteps were weighty and shook the ground.


Extremely large and heavy; having a great mass.


The massive boulder blocked the entire road.

How are these antonyms different from each other?

  • 1Heavy describes an object that weighs a lot, but it doesn't necessarily mean that it has a large mass.
  • 2Weighty is similar to heavy, but it emphasizes the importance or significance of the object's weight.
  • 3Massive describes an object that is not only heavy but also very large in size and has a great mass.

Good things to know

  • 1Physics: Use these antonyms to describe the weight and mass of objects in physics.
  • 2Daily Life: Use these antonyms to describe the weight and size of objects in everyday life.
  • 3Writing: Use these antonyms to create vivid descriptions of objects in creative writing.

Remember this!

The antonyms of massless are heavy, weighty, and massive. Use heavy to describe objects that weigh a lot, weighty to emphasize the importance of an object's weight, and massive to describe objects that are both heavy and large. These antonyms can be used in physics, daily life, and creative writing.

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