Mustain rhymes with:
chastain, sustain, abstain, chastain, costain, stain, sustain, abstain, aquitaine, ascertain, attain, brattain, buntain, butane, chastain, contain, costain, detain, entertain, fontaine, fountaine, lafountain, lafountaine, lamontagne, maintain, obtain, partain, pertain, petain, retain, sartain, stain, sustain, uptain
Mustain sounds like:
macadam, macadamia, macedonia, macedonian, mactan, magadan, magten, maktoum, mangosteen, masden, masten, mastin, mastodon, maston, maxton, mcadam, mccadden, mccuistion, mccuiston, mchatton, mckeithan, mckeithen, mckethan, mcquiston, meston, micatin, minnesotan, moisten, moonstone, mostyn, mujahadeen, mujahedeen, mujahideen, muscatine, mustin, muston