Here's what rhymes with quintuplet.
couplet Words that almost rhyme with quintuplet
puppet bucket buffet dullest gullet mullet dulcet pundit davit dovecote duvet dovecot kaput summit trumpet indulgent musket covet pungent apposite toughest pedant plummet dumbest justest decollete muralist judgment abundant judgement youngest incumbent buttressed compassed roughest ebullient inelegant sibilant subtlest strumpet atomised bluntest cultist refaced stomached adjustment redundant triumphant encompassed repugnant abutment exultant effulgent engulfment occultist reanimate demulcent reluctant resultant consultant recumbent misjudgment refulgent discussant misjudgement overindulgent maladjustment readjustment overabundant prejudgment superabundant magniloquent