Synonyms of surefire
- 1 Syllable
- sure
- 2 Syllables
- come-through, certain
- 3 Syllables
- certainties, inerrant, authentic, assured, unfailing, certainty
- 4 Syllables
- unshakable, accurate, undeniable, infallible, inerrable, apodictic, positive, established
- 5 Syllables
- indubitable, incontestable, indisputable, irrefutable, undeceivable, unquestionable, uncontestable
- 6 Syllables
- incontrovertible, unequivocable
- 7 Syllables
- authoritativeness