Synonyms and Antonyms for diagonal

1. diagonal (adj.)

connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face

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2. diagonal (n.)

an oblique line of squares of the same color on a checkerboard

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3. diagonal (n.)

(geometry) a straight line connecting any two vertices of a polygon that are not adjacent

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4. diagonal (n.)

(mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry

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5. diagonal (adj.)

having an oblique or slanted direction

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6. diagonal (n.)

a punctuation mark (/) used to separate related items of information

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7. diagonal (n.)

a line or cut across a fabric that is not at right angles to a side of the fabric

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