Words That Rhyme With "Incas" :

2 syllables:

jingles, Lincolns, linctus, mingles, Pincus, pinkness, pinkos, pringle's, shingles, singles, sprinkles, twinkies, twinkles, winkles, wrinkles, zincous

4 syllables:

5 syllables:

ornithorhynchus