Words That Rhyme With "Cynoglossum" :
2 syllables:
awesome, balsam, bauson, blossom, boschen, bossen, bossman, Boston, Bronson, caution, cockswain, costen, coxen, coxon, coxswain, crissum, crossen, crossman, Dawson, Dobson, dockson, Dodgson, Dothan, eyesome, Faustian, fossen, godson, gossan, Gotham, grewsome, gruesome, Hassam, Hodgson, johnsen, johnson, Jonson, monsen, mossman, noisome, offen, often, Oscan, oxen, pawson, possum, rossen, soften, sponson, Thomson, threesome, twosome, woesome
3 syllables:
atheism, esconson, exhaustion, incaution, opossum, precaution, responsum, sargassum