Here's what rhymes with isopentenoid.
annoyed avoid void toyed adenoid decoyed joyed employed enjoyed devoid paranoid choroid arachnoid ethmoid glenoid cloyed deployed steroid amyloid overjoyed sigmoid solenoid sphenoid convoyed hemorrhoid haemorrhoid destroyed unemployed rheumatoid alkaloid asteroid carcinoid celluloid anthropoid cuboid underemployed mongoloid schadenfreude subarachnoid humanoid redeployed reemployed Words that almost rhyme with isopentenoid
deutsche soit avoit droit adroit quoit introit maladroit noised moiled joined boiled coined coiled poised soiled foiled toiled adjoined purloined uncoiled roiled spoiled enjoined conjoined embroiled broiled unspoiled rejoined recoiled despoiled subjoined reconnoitred charbroiled