Here's what rhymes with unmannerlie.
lie ly rye lye wry lai luy by my high why apply die dry thy try y buy cry fly guy tie vi hi shy sigh bi bye chi dye fi hy nigh pi pie thai thigh vie dei fry ply psi quae sly ty underlie wir awry hai mai muy nai pry tri trie cy fy kai mei pri sy tai thei wai phi mummify slier supply sky imply nearby rely modify alkali spy alibi magnify nullify samurai belie untie mollify overlie ramify sty aquae ossify spry amebae stye turfy lanai reply thereby deny occupy whereby comply hereby multiply nuclei defy butterfly certify notify alveoli amplify pacify ratify unify decry lullaby pupae termini amoebae edify bonsai deify firefly retry misapply overfly scurfy barfly shanghai ripply banzais overbuy dandify justify satisfy stimuli qualify classify signify verify goodbye gratify standby terrify typify codify descry dignify mortify personify resupply vilify mystify triply ultrahigh blowfly calcify emulsify horrify reunify versify hyperbolae beatify drachmai yuppify identify clarify specify simplify testify glorify intensify purify quantify diversify fortify rectify beautify falsify indemnify solidify crucify liquefy oversupply acidify dragonfly stratify stultify vivify petrify stupefy cumuli liquify scarify prettify vitrify gentrify speechify syllabify solemnify objectify demystify detoxify preoccupy revivify dissatisfy declassify transmogrify refortify exemplify disqualify electrify reclassify misidentify oversimplify