Here's what rhymes with ululatus.
Words that almost rhyme with ululatus
uveitis luminous ruinous ludicrous luminance mutinous ruthlessness uselessness glutinous rootlessness humanise ruefulness glutenous kookiness usefulness gratuitous voluminous albuminous cumulus ruminants humanness youthfulness fruitlessness gruesomeness lutenists spookiness scrupulous bituminous humanists lubricants truthfulness fruitfulness fumigants pugilists duelists illusionists tunefulness dehumanise humourlessness nutriments unscrupulous communicants untruthfulness