| long-drawn-out(adjective, slow, boring, tedious, late) |
| long-lasting(adjective, stable, constant, enduring, lasting) |
| long-winded(adjective, slow, boring, tedious, late) |
| other world(noun, expression, age, future, infinity) |
| overlong(adjective, slow, boring, tedious, late) |
| perdurable(adjective, stable, constant, enduring, lasting) |
| perduring(adjective, stable, constant, vast, enduring) |
| perennial(adjective, stable, constant, enduring, lasting) |
| perpetual(adjective, stable, constant, enduring, lasting) |
| perpetuity(noun, age, future, infinity, forever) |
| persistent(adjective, stable, constant, enduring, lasting) |
| prolix(adjective, slow, boring, tedious, late) |
| prolonged(adjective, slow, boring, tedious, late) |
| set(adjective, stable, constant, enduring, lasting) |
| set in concrete(expression, adjective, idiom, stable, constant) |
| set in stone(expression, adjective, idiom, stable, constant) |
| slow(adjective, boring, tedious, late, rambling) |
| steadfast(adjective, stable, constant, enduring, lasting) |
| sustained(adjective, slow, boring, tedious, late) |
| tardy(adjective, slow, boring, tedious, late) |