| future(noun, time, prospect, futurity, hereafter) |
| proof(adjective, evidence, fact, substantiation) |
| assurance(noun, stability, steadiness, accuracy) |
| constancy(noun, endurance, stability, reliability) |
| futurity(noun, time, prospect, hereafter) |
| guarantee(noun, feature, state, detail, assurance) |
| stability(noun, assurance, endurance, reliability, steadiness) |
| up-to-dateness(noun, feature, state, characteristic) |
| accuracy(noun, assurance, stability, steadiness) |
| certitude(noun, feature, detail, assurance, guarantee) |
| contemporaneity(noun, feature, state, characteristic, originality) |
| currentness(noun, originality, newness, modernity) |
| endurance(noun, stability, reliability, constancy) |
| guaranty(noun, feature, state, guarantee, warrant) |
| modernity(noun, feature, state, characteristic, originality) |
| modernization(noun, originality, newness, modernity, currentness) |
| permanence(noun, endurance, stability, reliability, constancy) |
| reliability(noun, assurance, endurance, stability, steadiness) |
| steadiness(noun, assurance, stability, accuracy) |
| warrant(noun, feature, state, guarantee) |