Synonyms to effortfulness

hard job, Augean task, Herculean task, arduousness, backbreaker, backbreaking work, ballbuster, bitch, burdensomeness, chore, dead lift, handful, hard labor, hard pull, hard work, heavy sledding, laboriousness, large order, man-sized job, onerousness, oppressiveness, rough go, strenuousness, tall order, toilsomeness, tough job, tough proposition, troublesomeness, uphill work, warm work, confinement, dismemberment, estrapade, galleys, impalement, imprisonment, incarceration, jailing, keelhauling, martyrdom, penal servitude, picketing, railriding, rock pile, strappado, tar-and-feathering, the gantlet, torment, torture