| difficile(adjective, tough, severe, rough, difficult) |
| disciplining(adjective, punishing) |
| discouraging(adjective, hard, severe, offensive, cruel) |
| disquieting(hard, severe, offensive, distressing, irritating) |
| drag(adjective, dull, boring, tired, tedious) |
| dragging(adjective, dull, boring, tired, tedious) |
| draining |
| drudging(adjective, dull, boring, tired, tedious) |
| dull(adjective, heavy, boring, tedious, weighty) |
| easier said than done(expression, tough, severe, painful, problematic) |
| effort |
| embarrassing(hard, severe, offensive, distressing, upsetting) |
| enervative(adjective, dull, boring, tired, tedious) |
| entangling(adjective, hindering) |
| entrapping(adjective, hindering) |
| fat(big, heavy, awkward, substantial, large) |
| fierce |
| flat(adjective, dull, boring, tedious, irritating) |
| fleshy(big, heavy, awkward, substantial, large) |
| fouling(adjective, hindering) |