concave Synonyms
Another word for concave
• adjective (Context 1)
Having an outline or surface that curves inward like the interior of a circle, sphere, or bowl.
"concaving lenses are commonly used in eyeglasses to correct nearsightedness by diverging light rays."
• adjective (Context 2)
Of a polygon, having at least one interior angle greater than 180 degrees so that a line segment between two points inside it can pass outside the figure.
"A five-pointed star is a classic example of a re-entrant polygon."
• noun (Context 3)
A surface, line, or structure that curves inward; a hollow or vaulted recess.
"The skateboarder practiced riding along the steep concavity of the wooden ramp."
• verb (Context 4)
To make or become curved inward or hollowed out.
"The glassblower carefully heated and concaved the base of the bottle to give it stability."
Opposites of concave
The opposite of concave shifts depending on context. Common opposites include: