Here's what rhymes with castus.
Words that almost rhyme with castus
mastiff cactus axis canvas lattice actress atlas callous callus canvass vastness classless fastness gratis anise aptness captious caskets gaskets practice absence status anxious palace campus madness sadness baskets facets malice carrots gladness mattress abbots gametes hapless matchless phallus badness factious fatness gadgets mantras caliphs casements flatus gallops tactless balance habits apparatus disastrous barracks patents rabbits tablets ballots blackness exactness landless magnets flatness hamlets backups hammocks hatchets maggots pallets thankless trackless anklets catchments faggots fractious gallants paddocks palates palettes pathless rackets scallops shallots slackness planets talents blankets brackets pamphlets bandits frankness adjuncts banquets reactants compactness fascists handcuffs pageants savants blankness tyrannous fragments attachments imbalance combatants enactments inhabits malpractice tangents unbalance bankrupts pianists commandments detachments digitalis advancements enhancements abstractness benefactress enchantments counterbalance embankments instalments noncombatants propagandists