Words That Rhyme With "Dioecious" :

2 syllables:

specious

3 syllables:

autecious, autoecious, facetious, monecious, monoecious, paroecious, synoecious, trioecious

4 syllables:

heteroecious, meretricious

5 syllables:

androdioecious, andromonoecious, gynodioecious, gynomonoecious