Words That Rhyme With "Polygonal" :

3 syllables:

agonal, biphenyl, fictional, frictional, trigonal, visional

4 syllables:

additional, antiphonal, conditional, decagonal, diagonal, divisional, heptagonal, hexagonal, isogonal, nutritional, octagonal, orthogonal, pentagonal, provisional, suspicional, tetragonal, traditional, transitional

5 syllables:

benedictional, compositional, depositional, dodecagonal, intuitional, jurisdictional, nontraditional, unconditional, untraditional