Here's what rhymes with omnibut.
Words that almost rhyme with omnibut
opposite ornament nominate oxalate somnolent dominant fortunate communist obstinate armament commonest consummate cognizant consulate opulent organist oftenest arsonist argument prominent continent parliament complement coordinate consonant novelist occupant populist proximate botanist formalist oxidant condiment rottenest augustest confident unfortunate approximate consequent fraudulent bicarbonate columnist rearmament corpulent congregant uncommonest predominant incompetent proportionate disarmament apportionment biologist geologist monopolist protestant apologist incontinent extortionate zoologist urologist ethologist gemologist concomitant psychologist pathologist neurologist ideologist anthologist contortionist violoncellist gemmologist antioxidant reapportionment gynaecologist phrenologist cosmologist seismologist graphologist entomologist gynecologist embryologist futurologist escapologist anthropologist musicologist bacteriologist parapsychologist anesthesiologist endocrinologist anaesthesiologist