| persistent(adjective, continue, strain, firmness, labour) |
| stiff(adjective, strain, firmness, labour, hardiness) |
| lasting(verb, adjective, great, strain, deep) |
| enduring(verb, adjective, great, strain, deep) |
| staying(verb, adjective, strain, firmness, labour) |
| conservative(adjective, dull, strain, low, firmness) |
| constant(adjective, strain, firmness, labour, hardiness) |
| long-standing(adjective, strain, firmness, labour, hardiness) |
| sustained(adjective, great, strain, slow, deep) |
| settled(adjective, strain, firmness, labour, hardiness) |
| unyielding(adjective, strain, firmness, labour, hardiness) |
| slow(adjective, slow, boring, tedious, late) |
| sluggish(adjective, dull, slow, late, lazy) |
| dawdling(noun, verb, adjective, check, delay) |
| loitering(noun, verb, adjective, check, delay) |
| dragging(verb, adjective, great, slow, boring) |
| delaying(verb, adjective, slow, late, remiss) |
| dallying(verb, adjective, slow, late, remiss) |
| long(adjective, time, great, deep, boring) |
| tarrying(noun, verb, adjective, check, delay) |