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Pronunciation varies by accent · noun
A quadrilateral in which the pairs of nonadjacent sides are congruent, but in which two opposite sides intersect and are therefore not parallel..
Use antiparallelogram when its meaning, tone and grammar fit the full sentence. A synonym is not always a direct replacement.
Antiparallelogram means A quadrilateral in which the pairs of nonadjacent sides are congruent, but in which two opposite sides intersect and are therefore not parallel..
Common synonyms include contraparallelogram.
The opposite depends on the specific sense.
Use antiparallelogram where its definition matches the intended context.
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