| everlastingness(noun, age, future, infinity, perpetuity) |
| for ages(expression, adjective, slow, boring, tedious) |
| for keeps(expression, adjective, stable, constant, lasting) |
| forever(noun, adjective, adverb, stable, constant) |
| future(noun, age, infinity, perpetuity, forever) |
| immortality(noun, age, future, infinity, perpetuity) |
| immutable(adjective, stable, constant, enduring, lasting) |
| imperishability(noun, age, future, infinity, perpetuity) |
| imperishable(adjective, stable, constant, vast, enduring) |
| in for the long haul(expression, adjective, idiom, stable, constant) |
| indestructible(adjective, stable, constant, enduring, lasting) |
| infiniteness(noun, age, future, infinity, perpetuity) |
| infinitude(noun, age, future, infinity, perpetuity) |
| infinity(noun, age, future, perpetuity, forever) |
| invariable(adjective, stable, constant, enduring, lasting) |
| kingdom come(noun, expression, age, future, infinity) |
| lasting(adjective, stable, constant, vast, enduring) |
| late(adjective, slow, boring, tedious, rambling) |
| limitless(adjective, slow, boring, tedious, late) |
| lingering(adjective, slow, boring, tedious, late) |