| accurate(set, certain, unquestionable, indisputable, unassailable) |
| apodictic(set, certain, unquestionable, indisputable, unassailable) |
| beyond question(expression, set, certain, unquestionable, indisputable) |
| can bet on it(expression, set, certain, unquestionable, indisputable) |
| certain(set, unquestionable, indisputable, unassailable, ironclad) |
| double-checked(set, certain, unquestionable, indisputable, unassailable) |
| evident(set, certain, unquestionable, indisputable, unassailable) |
| inarguable(set, certain, unquestionable, indisputable, unassailable) |
| incontestable(set, certain, unquestionable, indisputable, unassailable) |
| indubitable(set, certain, unquestionable, indisputable, unassailable) |
| invincible(set, certain, unquestionable, indisputable, unassailable) |
| ironclad(set, certain, unquestionable, indisputable, unassailable) |
| irresistible(set, certain, unquestionable, indisputable, unassailable) |
| nof ifs ands or buts(expression, set, certain, unquestionable, indisputable) |
| obvious(set, certain, unquestionable, indisputable, unassailable) |
| odds-on(set, certain, unquestionable, indisputable, unassailable) |
| positive(set, certain, unquestionable, indisputable, unassailable) |
| proven(set, certain, unquestionable, indisputable, unassailable) |
| set(certain, unquestionable, indisputable, unassailable, ironclad) |
| sure(set, certain, unquestionable, indisputable, unassailable) |