Meanings
nounantidiagonal (plural antidiagonals)
plural antidiagonals · alternative anti-diagonal
- linear algebraThe diagonal of a matrix that leads from top-right towards bottom-left.
Synonyms: counterdiagonal, secondary diagonal, minor diagonal
Synonyms & antonyms
nounThe diagonal of a matrix that leads from top-right towards bottom-left.
Origin
- Proto-Indo-European*h₂ent-
- Proto-Indo-European*h₂énts
- Proto-Indo-European*h₂énti
- Ancient Greekᾰ̓ντῐ́ (ăntĭ́)
- Ancient Greekἀντι- (anti-)
- Englishanti-
- Englishdiagonal
- Englishantidiagonal
Translations
Greek αντιδιαγώνιος
- αντιδιαγώνιος (antidiagónios)the diagonal of a matrix that leads from top-right towards bottom-left
Portuguese antidiagonal
- antidiagonalthe diagonal of a matrix that leads from top-right towards bottom-left
Cite this entry
APA
antidiagonal. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/antidiagonal
MLA
“antidiagonal.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/antidiagonal. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “antidiagonal,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/antidiagonal.
Source: antidiagonal on Wiktionary, CC BY-SA 4.0.