Thesaurus
Synonyms & Antonyms of sure
(Entry 1 of 2)
1
having or showing a mind free from doubt
- are you absolutely sure that she said she was coming today?
Synonyms for sure
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Antonyms for sure
2
impossible to avoid or evade
- the joke's a sure dud if you don't pause in the right places
Synonyms for sure
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Phrases Synonymous with sure
- in the bag,
- in the cards
- (also on the cards)
Near Antonyms for sure
Antonyms for sure
3
not likely to fail
- a sure cure for the winter blues—a week in the Bahamas
Synonyms for sure
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4
worthy of one's trust
- a sister is a sure friend for life
Synonyms for sure
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Near Antonyms for sure
- disloyal,
- faithless,
- false,
- fickle,
- inconstant,
- perfidious,
- recreant,
- traitorous,
- treacherous,
- unfaithful,
- untrue
- debatable,
- disputable,
- doubtable,
- doubtful,
- dubious,
- fishy,
- problematic
- (also problematical),
- questionable,
- shady,
- shaky,
- suspect,
- uncertain,
- unsound
Antonyms for sure
- dodgy
- [chiefly British],
- uncertain,
- undependable,
- unreliable,
- unsafe,
- untrustworthy
5
not capable of being challenged or proved wrong
- no sure evidence that life exists on other planets
Synonyms for sure
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Near Antonyms for sure
- academic
- (also academical),
- hypothetical,
- speculative,
- theoretical
- (also theoretic)
Antonyms for sure
sure
adverbSynonyms of sure (Entry 2 of 2)
without any question
- we sure could use your help here
Synonyms for sure
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Phrases Synonymous with sure
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Time Traveler for sure
The first known use of sure was in the 13th century
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