Tremendous rhymes with:
horrendous, stupendous, candace, hondas, horrendous, indus, jaundice, landess, stupendous, addidas, addidas', adidas, aldous, brajdas, broadus, candace, constantinides, cowardice, delgiudice, enterividous, exodus, geddes, georgiades, goddess, gradus, hazardous, hondas, horrendous, indus, jaundice, judas, landess, logiudice, madis, midas, modus, pardus, redus, rhodus, sardas, sodus, stewardess, stupendous
Tremendous sounds like:
taranto's, terminates, termites, thermedics, thermits, thorndike, thorndike's, thorndikes, thorndyke, thurmond's, torments, tornadic, tornado's, tornadoes, tornados, toronto's, torrents, tournament's, tournaments, tournedos, traumatic, traumatize, trends, trent's, trinity's, trintex, turnouts, tyrants