Here's what rhymes with heavier.
levier Words that almost rhyme with heavier
messier fleshier fleshlier dressier farrier harrier airier edgier hairier headier verier healthier terrier readier steadier merrier sexier scarier heftier pettier warier sketchier peppier sweatier tetchier threadier wealthier deadlier emptier lengthier homelier stealthier stretchier preppier friendlier excelsior comelier unhealthier unsteadier unfriendlier