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