noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   The diagonal of a matrix that leads from top-right towards bottom-left.

Synonyms

All synonyms

counterdiagonalcounterdiagonalminor diagonalminor diagonalsecondary diagonalsecondary diagonal

Etymology

From anti- + diagonal.

Related phrases

main diagonal

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.