Words That Rhyme With "Actinian" :

3 syllables:

inion

4 syllables:

Abyssinian, Arminian, Darwinian, hominian, Justinian, Mordvinian, Sardinian, Socinian

5 syllables:

Argentinian, Augustinian, Carolinian, Carthaginian, catarrhinian, hirudinean, Palestinian, platyrrhinian, Valentinian