Alkaloidal rhymes with:
colloidal, colloidal, colloidal, colloidal, rhizoidal, addle, andal, andel, antipodal, arundel, astraddle, backpedal, badal, bandel, barkdoll, barkdull, beadle, bedell, beedle, befuddle, bendall, bendel, bendele, biddle, bimiodal, bindel, bindle, blaisdell, blasdel, blasdell, bloedel, blondell, blundall, blundell, bodle, boodle, bowdle, brandel, brandl, brandle, brendel, brendle, bridal, bridle, brindle, bundle, caboodle, caddell, cadle, candle, caudal, caudill, caudle, chadel, cheadle, clapsaddle, coddle, cogdell, cogdill, colloidal, cordill, cordle, coykendall, cradle, crandall, crandell, credle, criddle, crudele, cuddle, cundall, dawdle, doodle, dowdall, dowdell, dowdle, dwindle, edel, fadel, fandel, fedele, feudal, fiddle, flapdoodle, fondle, fredell, freedle, freidel, friddle, friedel, friedl, geidel, genocidal, girdle, gradel, gredel, grendel, grindle, gundel, gundle, handel, handle, haydel, heidel, heindel, heindl, hendel, herdal, hindle, hodel, homicidal, huddle, hurdle, idle, idol, idyll, indal, intermodal, intertidal, kadel, kandel, kardell, keadle, keidel, kendal, kendall, kendell, kendle, kernodle, kiddle, kindall, kindel, kindell, kindle, kirkendall, knodel, knodle, krandall, ladle, lansdell, lendl, liddell, liddle, liedel, lindell, lobdell, lundell, lydall, madel, madl, maidel, mandel, mandell, mandl, mandle, manhandle, mcardle, mccardell, mccardle, medal, meddle, medel, meidl, meindl, mendel, middle, migdal, mindel, mishandle, modal, model, mollycoddle, muddle, mundell, nedel, needle, neidl, noodle, nordell, odle, oodle, paddle, panhandle, pedal, peddle, pendell, piddle, pindell, podoll, poodle, prindl, prindle, puddle, pyramidal, radel, radle, ramsdell, randal, randall, randel, randle, randol, reddell, redel, redell, reidel, reindel, reindl, rekindle, remodel, rendall, rendell, rhizoidal, riddell, riddle, riedel, riedl, rodell, roedel, roedl, rolemodel, rubendall, ruddell, ruddle, rudel, rudell, rundall, rundell, rundle, rydell, saddle, salzwedel, sandal, scandal, schadel, schaedel, scheidel, schendel, schindel, schmidl, schroedl, seidel, seidell, seidl, seydel, shadel, shadle, shindle, siddall, siddell, siddle, sidell, sidle, sinusoidal, skurdal, speidel, spidel, spidell, spidle, spindel, spindle, spurdle, stadel, steidel, steidl, steidle, stendal, straddle, sudol, suicidal, sundell, supermodel, swindall, swindell, swindle, tidal, tindal, tindall, tindel, tindell, tindle, tindol, tisdel, tisdell, toddle, troendle, trudel, trudell, trundle, twaddle, tweedle, twiddle, tyndall, udall, udell, unbundle, vanarsdall, vanausdall, vandal, vanhandel, vanosdol, waddle, wadel, wadle, wandel, wandell, wardle, weddell, weddle, wedel, wedell, weidel, weindel, weischedel, wendel, wendell, widdle, widell, wiedel, windell, windle, wooddell, woodell, woodle, wordell, yandell, yandle, yeldell, yodel, zajdel, zundel