| beyond doubt(expression, sound, certain, true, definite) |
| for sure(expression, sound, certain, true, definite) |
| incontestable |
| open and shut(expression, idiom, sound, certain, true) |
| sure thing(expression, sound, certain, true, definite) |
| unanswerable(sound, certain, true, definite, unquestionable) |
| actual(sound, certain, true, definite, unquestionable) |
| binding(sound, certain, true, definite, unquestionable) |
| compulsory(sound, certain, true, definite, unquestionable) |
| manifest(sound, certain, true, definite, unquestionable) |
| necessary(sound, certain, true, definite, unquestionable) |
| obligatory(sound, certain, true, definite, unquestionable) |
| patent(sound, certain, true, definite, unquestionable) |
| real(sound, certain, true, definite, unquestionable) |
| sound(certain, true, definite, unquestionable, indisputable) |
| true(sound, certain, definite, unquestionable, indisputable) |
| unarguable |
| undoubted(sound, certain, true, definite, unquestionable) |