Here's what rhymes with tridiagonals.
diagonals Words that almost rhyme with tridiagonals
nationals rationals capitals radicals cannibals casuals chasubles irrationals palatals damages passages balances palaces savages pathogens valuables lattices mandibles halogens madrigals paralyses chalices clavicles tangibles practicals flammables magnetise languages practices packages campuses bandages mattresses multinationals apparatuses statuses stratagems internationals mastodons salvages transnationals practicums factotums panamas fastnesses intangibles anathemas maximums masculines scapulas urinalyses grampuses automatises malpractices democratises bureaucratises chrysanthemums