Here's what rhymes with chieftainless.
Words that almost rhyme with chieftainless
evenness deaconess peacefulness treasonous dreaminess steaminess feebleness edematous unevenness heedlessness speechlessness speciousness creaminess needlessness recentness gleefulness vehemence covetousness sleeplessness pediments deceitfulness cenotaphs grievousness ingeniousness ceaselessness facetiousness egregiousness