Translation guide
Describes a surface or shape that curves inward, like the inside of a bowl.
Describing a physical surface that curves inward
The standard technical term for a concave surface, used in geometry, optics, and general descriptions.
Describing a concave polygon or function
このレンズは凹面になっている。
This lens has a concave surface.
Describes a concave shape or form, often used in technical or descriptive contexts.
The terrain has a concave shape.
Everyday verb meaning 'is dented' or 'is sunken', commonly used for concave surfaces in daily life.
The inside of a spoon is concave.
Casual verb meaning 'is dented' or 'is caved in', often for accidental or irregular concavity.
The car door is concave where the ball hit it.
Technical term for a concave polygon, used in geometry.
This shape is a concave polygon.
Mathematical term for a concave function.
This function is concave.