Here's what rhymes with actuosum.
possum blossom opossum Words that almost rhyme with actuosum
caution cation soften rosin herniation libation macrocosm precaution microcosm tryptophan calumniation bottom column solemn forum quorum balsam dorsum bonum foursome carom quantum boredom mortem condom sorghum nostrum rostrum wampum flotsam slalom cockscomb problem decorum drachm stardom thraldom thralldom metronome gastronome falciparum sugarplum postpartum