| tense(feeling, stress, characteristic, adjective, anxious) |
| strained(adjective, excited, anxious, pressure, verb) |
| distressing(adjective, stress, characteristic, state, feeling) |
| nerve-racking(adjective, characteristic, feeling, excited, anxious) |
| anxious(adjective, characteristic, feeling, excited, nervous) |
| toilsome(adjective, hard, difficult, complex) |
| weighty(adjective, hard, difficult, complex) |
| trying(adjective, characteristic, feeling, hard, difficult) |
| worrying(adjective, characteristic, feeling, stress) |
| oppressive(adjective, hard, difficult, complex) |
| rough(adjective, hard, difficult, complex) |
| severe(adjective, hard, difficult, complex) |
| complex(adjective, characteristic, hard, difficult) |
| painful(adjective, hard, difficult, complex) |
| burdensome(adjective, hard, difficult, complex) |
| complicated(adjective, hard, difficult, complex) |
| disturbing(adjective, hard, difficult, complex) |
| hard(adjective, characteristic, feeling, difficult, complex) |
| tough(adjective, characteristic, feeling, hard, difficult) |
| exhausting(adjective, characteristic, feeling, stress) |