Nonbeliever rhymes with:
believer, believer, believer, cleaver, leaver, leever, reliever, unilever, achiever, beaver, beever, believer, biever, cheever, cleaver, deaver, dever, driever, fever, greever, griever, keever, leaver, leever, mcgeever, mckeever, reaver, receiver, reever, reliever, retriever, schriever, seaver, seever, siever, steever, stever, unilever, vandever, weaver, wever