| unbearable(adjective, hard, difficult, complex, painful) |
| dire(adjective, hard, difficult, complex) |
| involved(adjective, hard, difficult, complex, thorny) |
| serious(adjective, hard, difficult, complex) |
| troubled(adjective, hard, difficult, complex) |
| soul-crushing |
| annoying(adjective, dull, boring, painful, tedious) |
| bothersome(adjective, tough, severe, difficult, painful) |
| troublesome(adjective, hard, tough, severe, difficult) |
| irksome(adjective, dull, difficult, boring, painful) |
| demanding(adjective, dull, hard, tough, severe) |
| irritating(adjective, dull, tough, severe, boring) |
| unpleasant(adjective, hard, tough, severe, tender) |
| onerous(adjective, dull, hard, tough, difficult) |
| uncomfortable(adjective, tender, awkward, raw, painful) |
| distressing(verb, adjective, hard, severe, tender) |
| exacting(adjective, dull, hard, tough, severe) |
| nerve-racking(adjective, distressing) |
| testing(noun, verb, adjective, meet, tough) |
| tiresome(adjective, hard, tough, severe, fatigue) |