| troublesome(adjective, tough, severe, difficult, harsh) |
| apathetic(adjective, dull, quiet, weak, easy) |
| copious(adjective, give, great, big, substantial) |
| distressing(adjective, tough, severe, rough, difficult) |
| drowsy(adjective, dull, quiet, easy, slow) |
| elephantine(adjective, big, awkward, substantial, round) |
| esoteric(adjective, easy, severe, obscure, difficult) |
| flat(adjective, dull, ordinary, dry, boring) |
| gladiator(tough, opponent, champion, mercenary, militant) |
| gruelling |
| close(adjective, set, strong, hard, tough) |
| beefy(adjective, person, body, big, powerful) |
| burly(adjective, solid, powerful, deep, round) |
| compact(adjective, set, strong, hard, tough) |
| considerable(adjective, big, important, significant, substantial) |
| effortful(adjective, tough, severe, difficult, harsh) |
| enceinte(adjective, big, awkward, weight, expectant) |
| excessive(adjective, severe, harsh, big, awkward) |
| firm(noun, adjective, set, strong, hard) |
| full(adjective, strong, big, rich, thick) |