arduous Synonyms - page 2

back-breaking rockbound semiarid air-dry sunbaked toilful upstream torrefied torturing. tough tricky troublesome uphill walrus wearing wearying wrenching tensional accentual complex complicated crushing daedalian debilitating declivitous dewless difficile dire discommodious distressful draining cloggy cliffy aching adust ambitious anhydrous argillaceous augean besetting byzantine carking ceramic challenging clayey dry-shod enervating exacting kittle knarred