Here's what rhymes with tantrum.
antrum Words that almost rhyme with tantrum
tantum bantam atom annum datum phantom tandem anthem angstrom handsome random album platinum ransom alum hansom transom talcum pablum maxim stratum chasm fathom madam spasm madame magnum plasm sanctum sachem amalgam gladsome sphagnum memorandum macadam nonrandom phantasm substratum neoplasm cytoplasm tarmacadam enthusiasm protoplasm iconoclasm