| painful(adjective, hard, moving, severe, difficult) |
| grievous(adjective, hard, severe, difficult, unpleasant) |
| sad(adjective, hard, difficult, complex) |
| tight(adjective, hard, difficult, complex, troublesome) |
| upsetting(noun, verb, adjective, bad, moving) |
| dire(adjective, hard, severe, difficult, unpleasant) |
| burdensome(adjective, hard, difficult, complex, troublesome) |
| complex(adjective, hard, difficult) |
| severe(adjective, hard, difficult, awful, terrible) |
| difficult(adjective, hard, complex) |
| distressing(adjective, hard, moving, severe, poor) |
| hard(adjective, mean, severe, difficult, harsh) |
| oppressive(adjective, hard, difficult, complex) |
| grave(adjective, hard, difficult, complex) |
| grinding(verb, adjective, hard, difficult, complex) |
| hard-nosed(adjective, hard, severe, difficult, complex) |
| intricate(adjective, hard, difficult, complex) |
| nasty(adjective, hard, severe, difficult, complex) |
| problematic(adjective, hard, difficult, complex) |
| rough(adjective, hard, severe, difficult, complex) |