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