Words That Rhyme With "Antirrhinum" :
2 syllables:
annum, byname, Cimon, crinum, fineman, flyman, frenum, granum, heinzen, highman, Hyman, hymen, liman, limen, lineman, linemen, Lyman, minden, paynim, phenom, pieman, plenum, rhineman, Simon, stannum, Steinem, Steinman, venom, wineman, Wyman
3 syllables:
envenom, glucinum, Houyhnhnm, jejunum, solanum, tablinum, trigonum