| sad(adjective, hard, difficult, complex, awful) |
| grave(adjective, help, bad, hard, great) |
| severe(adjective, help, hard, tough, difficult) |
| painful(adjective, hard, tough, severe, rough) |
| dire(adjective, hard, severe, difficult, tender) |
| distressing(adjective, mean, tough, severe, rough) |
| hard(adjective, tough, severe, rough, difficult) |
| sore(adjective, hard, difficult, complex, painful) |
| oppressive(adjective, hard, severe, difficult, complex) |
| serious(adjective, help, hard, great, tough) |
| weighty(adjective, hard, great, tough, severe) |
| unbearable(adjective, hard, severe, difficult, complex) |
| cruel(adjective, hard, difficult, sad, unhappy) |
| tough(adjective, hard, severe, difficult, harsh) |
| difficult(adjective, hard, complex, sickness, ache) |
| burdensome(adjective, hard, difficult, complex, painful) |
| arduous(adjective, hard, difficult, complex, painful) |
| woeful(adjective, mean, poor, low, happy) |
| deplorable(adjective, bad, severe, happy, sad) |
| disturbing(adjective, hard, severe, difficult, unpleasant) |