Words That Rhyme With "Polygamous" :

3 syllables:

agamous, bigamous, didymous, hiddenness, Michaelmas, trigamous, trigonous

4 syllables:

Antigonus, cryptogamous, dichogamous, Eridanus, homogamous, isogamous, monogamous, oogamous

5 syllables:

anisogamous, heterogamous