toilsome+effort
41tough — I (New American Roget s College Thesaurus) adj. strong, firm; stiff, resilient; vigorous, robust, hardy; stubborn, intractable; violent, severe; unyielding, hardened, incorrigible; informal, vicious, rowdy, unruly, difficult, troublesome. See… …
42heavy — adjective 1) a heavy box Syn: weighty, hefty, substantial, ponderous; solid, dense, leaden; burdensome; informal hulking, weighing a ton Ant: light 2) a heavy man Syn …
43hard — [adj1] rocklike adamantine, callous, compact, compacted, compressed, concentrated, consolidated, dense, firm, hardened, impenetrable, indurate, indurated, inflexible, iron*, packed, rigid, rocky, set, solid, stiff, stony, strong, thick, tough,… …
44effortful — adjective requiring great physical effort • Ant: ↑effortless • Similar to: ↑arduous, ↑backbreaking, ↑grueling, ↑gruelling, ↑hard, ↑heavy, ↑laborio …
45laboriousness — noun the quality of requiring extended effort • Syn: ↑operoseness, ↑toilsomeness • Derivationally related forms: ↑toilsome (for: ↑toilsomeness), ↑operose (for: ↑ …
46operoseness — noun the quality of requiring extended effort • Syn: ↑laboriousness, ↑toilsomeness • Derivationally related forms: ↑toilsome (for: ↑toilsomeness), ↑operose, ↑laborious …
