Here's what rhymes with substantiac.
back black lack track pack nach plaque rack sac sack hack jack tack fac knack lac shack mac mak tak whack wrack yak mack wack yack attack cardiac crack stack slack aback smack snack flak maniac quack zodiac clack ipecac claque flack repack anorak mudpack elegiac shellac unpack demoniac hardtack lumberjack piggyback amnesiac gunnysack thumbtack highjack paperback almanac insomniac rickrack pickaback skyjack counterattack haversack stickleback applejack crackerjack razorback steeplejack quarterback nymphomaniac megalomaniac Words that almost rhyme with substantiac
bag drag lag tag rag gag hag wag brag fag mag nag sag zag dag shag blag toerag flag slag stag crag snag swag dishrag fleabag scrag washrag nosebag chinwag scallywag wigwag sleazebag lollygag lallygag saddlebag scalawag bank task rank blank tank thank drank mask sank plank cask masque shank bask dank hanc lank prank talc antitank hank yank basque flank flask frank crank shrank franc clank spank stank swank outrank unmask pointblank embank databank charabanc riverbank