| unstoppable |
| overriding(adjective, feature, state, characteristic, most important) |
| compulsory(adjective, cruel, pitiless, unrelenting, coming) |
| fatal |
| flagship(adjective, feature, state, characteristic, most important) |
| forthcoming(adjective, expected, likely, possible, immediate) |
| imperative(adjective, necessary, required) |
| ineludible(adjective, certain, necessary, inexorable, undeniable) |
| infallible(certain, unquestionable, undisputable, inevitable) |
| obligatory(adjective, important, vital, obvious, necessary) |
| pervasive(adjective, extensive) |
| self-evident(adjective, obvious) |
| determined(adjective, expected, predictable, necessary, inexorable) |
| capital(adjective, most important) |
| chief(adjective, most important) |
| first key(adjective, most important) |
| hard |
| incontestable(adjective, certain, unquestionable, undisputable) |
| irrevocable(adjective, certain, expected, predictable, necessary) |
| main(adjective, most important) |