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quadrilateral Synonyms
Another word for quadrilateral
Choosing another word for quadrilateral depends on context, so the synonyms and similar words below are separated across 3 exact definitions and ranked by match strength.
• noun (Context 1)
A two-dimensional geometric polygon having four straight sides and four vertices, such as a square, rectangle, rhombus, or trapezoid.
Usage Example
"In Euclidean geometry, the interior angles of any simple tetragon always sum to 360 degrees."
Strongest
tetragon
quadrangle
• adjective (Context 2)
Having four straight sides.
Usage Example
"The ancient fortress was built around a large, four-sided courtyard."
Strongest
four-sided
Strong
tetragonal
quadrangular
• adjective (Context 3)
Involving or shared by four parties, states, or groups.
Usage Example
"The diplomats gathered in Geneva for four-way talks aimed at resolving the regional trade dispute."
Strongest
four-way
quadripartite
Opposites of quadrilateral
The opposite of quadrilateral shifts depending on context. Common opposites include:
unilateral
bilateral
• Nearby Words
Cite this Entry
Wordmom. (2026). Synonyms for Quadrilateral. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/quadrilateral