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

The Opposite(Antonym) of “convex”

The antonyms of convex are concave and sunken. The antonyms concave and sunken describe a surface that curves inward instead of outward, which is the opposite of convex.

Explore all Antonyms of “convex”

• concave
• sunken

Definitions and Examples of concave, sunken

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

concave

Having a surface that curves inward, like the inside of a bowl.

Example

The spoon had a concave shape that made it easy to scoop up soup.

sunken

Having a surface that is lower than the surrounding area.

Example

The old ship was sunken deep in the ocean, making it difficult to salvage.

Key Differences: concave vs sunken

• 1. Concave describes a surface that curves inward, like the inside of a bowl.
• 2. Sunken describes a surface that is lower than the surrounding area.

Effective Usage of concave, sunken

• 1. Mathematics: Use convex and concave to describe the shapes of geometric figures.
• 2. Science: Use convex and concave to describe the shapes of lenses and mirrors.
• 3. Geography: Use sunken to describe landforms that are lower than the surrounding area, such as a sunken valley or basin.

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Remember this!

The antonyms of convex are concave and sunken. Concave describes a surface that curves inward, while sunken describes a surface that is lower than the surrounding area. These words can be used in mathematics, science, and geography to describe shapes and landforms.