Funniness rhymes with:
airworthiness, arbitrariness, bagginess, bitchiness, bounciness, clumsiness, cockiness, contrariness, coziness, craziness, creditworthiness, deadliness, dizziness, dreariness, drowsiness, edginess, emptiness, ghastliness, hairiness, happiness, healthiness, holiness, laziness, liveliness, loneliness, lousiness, nastiness, niggardliness, nosiness, orderliness, pettiness, queasiness, raciness, readiness, riskiness, roominess, rowdiness, scantiness, sexiness, shakiness, silliness, sleepiness, sloppiness, slovenliness, sturdiness, tardiness, tastiness, timeliness, trustworthiness, ugliness, uneasiness, unwieldiness, weariness, wimpiness, worldliness
Funniness sounds like:
famines, famous, fan's, fancies, fancy, fanech, fanech's, fang, fangs, fanguy, fanning, fanning's, fans, fans', fanuc, fanucchi, faunce, fawning, fayanjuu, fein's, femsa, fence, fences, fenech, feng, fennessey, fennessy, fenske, fenwick, fiance, fiancee, fibonacci, fiennes, finance, finances, financo, finanz, finanza, finazzo, finch, finches, finck, fincke, fines, finesse, finex, finian's, finicky, fining, finish, finishes, fink, fink's, finke, finks, finn's, finnick, finning, finnish, finns, finocchio, fins, finunc, foaming, foams, fomon's, fones, fong, fons, fonseca, fonz, fonzie, foong, fumes, fuming, funches, funchess, funck, funes, fung, fung's, fungi, fungus, funk, funke, funks, funky, funs