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