Synonyms|239Antonyms|51|Broader|0Narrower|0Related|53

109 entries under certain topic. ×

1
decided(adjective, set, solid, definite)
1
definite(adjective, solid, sure, confident)
1
ensured(adjective, set, solid, sure)
1
fixed(adjective, set, solid, definite)
1
guaranteed(adjective, set, firm, solid)
1
in the bag(expression, adjective, idiom, solid)
1
incontestable(established, accurate, unquestionable, undeniable)
1
inerrant(unquestionable, undisputable)
1
inevitable(adjective, unquestionable, undisputable)
1
insured(adjective, set, solid, sure)
1
irrefutable(adjective, solid, sure, confident)
1
made certain(expression, adjective, set, solid)
1
nailed down(expression, adjective, solid, sure)
1
never-failing(reliable, trustworthy, unquestionable, boundless)
1
on ice(expression, adjective, set, solid)
1
positive(adjective, sure, unquestionable, guaranteed)
1
pronounced(adjective, set, solid, sure)
1
racked(adjective, set, solid, sure)
1
sealed(adjective, set, firm, solid)
1
set(adjective, solid, definite, sure)
For more, visit Surefire on Power Thesaurus
11 years ago|2.7k views|share |citing 
APASmart Define. (2015). surefire thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/surefire/thesaurus/synonyms
ChicagoSmart Define. 2015. "surefire thesaurus" https://smartdefine.org/surefire/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, surefire thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/surefire/thesaurus/synonyms>.
MLASmart Define. "surefire thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/surefire/thesaurus/synonyms>