Here's what rhymes with cellulary.
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allele belly jelly deli telly smelly underbelly vermicelli ready rarely levy levee leggy recce many heavy fairly barely semi lengthy petty penny fleshy heady messy jetty teddy bevy breathy dressy faery jenny libretti thready kepi lefty sedgy veggie already healthy steady plenty wealthy deadly freshly gentry frenzy antennae carefree medley sentry sexy sketchy sweaty unfairly vestry belfry deathly fleshly gayety hefty machete sullenly pebbly tempi testy trendy aplenty marquetry pesky wetly especially twenty assembly friendly scarcely elementary gently epilepsy unhealthy densely squarely deftly spaghetti unsteady coquetry stealthy confetti fidgety tensely adeptly effendi preciously directly correctly expressly immensely unfriendly apoplexy excellency halfpenny hostelry narcolepsy sacredly baronetcy maidenly reassembly ineptly woodenly intensely intently grotesquely complexly catalepsy deviancy indirectly complementary incorrectly confusedly equivalently ambivalently cognoscenti penitently circumspectly