arduous Synonyms - page 2

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