| bruiser(noun, person, mean, bad, temper) |
| stringy(adjective, feature, characteristic, strong, thin) |
| weighty(adjective, hard, difficult, heavy, complex) |
| backbreaking(adjective, hard, difficult, heavy, complex) |
| complex(adjective, hard, difficult) |
| complicated(adjective, hard, difficult, complex) |
| intricate(adjective, hard, difficult, complex, laborious) |
| operose(adjective, hard, severe, difficulty, rough) |
| problematic(adjective, hard, difficult, complex) |
| impenetrable(adjective, hard, firm, solid, stiff) |
| stiff(adjective, strong, hard, severe, rough) |
| uncompromising(adjective, characteristic, mean, clear, hard) |
| durable(adjective, calm, quality, strong, sound) |
| tricky(adjective, hard, difficult, complex) |
| fierce(noun, adjective, clear, bad, hard) |
| punishing(adjective, hard, difficult, complex) |
| sad(adjective, bad, hard, cool, severe) |
| demanding(adjective, dull, hard, easy, severe) |
| hoodlum(noun, person, mean, attack, crimes) |
| robust(adjective, person, body, strong, hard) |