| burdensome(adjective, hard, difficult, complex) |
| grinding(adjective, hard, difficult, pain, complex) |
| half-assed |
| heartrending(adjective, hard, difficult, complex) |
| hefty(adjective, hard, difficult, complex) |
| messy(adjective, hard, difficult, unpleasant, complex) |
| toilsome(adjective, hard, difficult, complex) |
| troubled(adjective, hard, difficult, unhappy, gloomy) |
| unbearable(adjective, hard, difficult, complex) |
| vital(adjective, importance, valuable, main, notable) |
| staid(adjective, characteristic, calm, dull, quiet) |
| crucial(adjective, great, tough, severe, big) |
| sanctuary |
| grand(adjective, importance, important, valuable, main) |
| significant(adjective, great, tough, severe, importance) |
| somber(adjective, calm, dull, quiet, cool) |
| dangerous(adjective, help, great, tough, severe) |
| portentous(adjective, importance, valuable, main, notable) |
| mausoleum(noun, place, keep, safe, mound) |
| dignified(adjective, characteristic, calm, dull, quiet) |