| heavy(adjective, tough, severe, difficult, awkward) |
| worked(noun, verb, acted, worked) |
| toiled(noun, verb, worked, exerted) |
| difficult(adjective, hard, great, tough, rough) |
| arduous(adjective, hard, great, tough, rough) |
| effortful(adjective, hard, great, tough, rough) |
| laboured(verb, adjective) |
| strained(verb, adjective, hard, rough, true) |
| laborious(adjective, hard, great, tough, rough) |
| awkward(adjective, difficult, slow, uncertain, stiff) |
| forced(verb, adjective, strong, hard, difficult) |
| functioned(verb, acted, worked) |
| overworked(verb, adjective, fancy, exact, complex) |
| uphill(adjective, hard, great, tough, difficult) |
| acted(verb, acted, worked) |
| artificial(adjective, strong, false, cold, awkward) |
| elaborate(adjective, false, complex, involved, preparation) |
| endeavored(verb, acted) |
| exercised(verb, acted, exerted) |
| halting(uncertain, hesitant, tentative, inelegance) |