| sluggish(adjective, hard, difficult, slow, deliberate) |
| drudgery(noun, adjective, hard, difficult, complex) |
| leaden(adjective, hard, difficult, complex) |
| ponderous(adjective, hard, difficult, complex, tedious) |
| laborious(adjective, work, hard, difficult, complex) |
| stodgy(adjective, dull, hard, difficult, complex) |
| stubborn(adjective, hard, difficult, complex) |
| grinding(adjective, hard, difficult, complex) |
| slow(adjective, quiet, moderate, easy, slow) |
| lingering(noun, verb, adjective, slow, slowness) |
| industrious(adjective, activity, work, perseverance, labour) |
| poky(adjective, slow) |
| workaholic |
| crawling(verb, adjective, slow, slowing) |
| dawdling(verb, adjective, slow, slowing) |
| dragging(verb, adjective, slow, slowing) |
| trudging(verb, adjective, slow, slowing) |
| assiduous(adjective, activity, work, labour, multitask) |
| creeping(verb, adjective, slow, slowing) |
| diligent(adjective, activity, work, labour, multitask) |