Words That Rhyme With "Argentinian" :

3 syllables:

inion

4 syllables:

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

5 syllables:

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