| abiding(certain, unquestionable, undisputable) |
| accurate(certain, unquestionable, undisputable) |
| assured(certain, unquestionable, undisputable) |
| bound(certain, unquestionable, undisputable) |
| certain(unquestionable, undisputable) |
| changeless(certain, unquestionable, undisputable) |
| clear(certain, unquestionable, undisputable) |
| conclusive(certain, unquestionable, undisputable) |
| constant(certain, unquestionable, undisputable) |
| convinced(certain, unquestionable, undisputable) |
| convincing(certain, unquestionable, undisputable) |
| decided(certain, unquestionable, undisputable) |
| definite(certain, unquestionable, undisputable) |
| doubtless(certain, unquestionable, undisputable) |
| enduring(certain, unquestionable, undisputable) |
| firm(certain, unquestionable, undisputable) |
| fixed(certain, unquestionable, undisputable) |
| for a fact(expression, idiom, certain, unquestionable, undisputable) |
| free from doubt(expression, idiom, certain, unquestionable, undisputable) |
| genuine(certain, unquestionable, undisputable) |