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