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Showing results for for certain.
Definitions

for certain

ADJECTIVE
inevitable
Synonyms
STRONGEST
imminent impending inescapable inexorable irresistible necessary unavoidable undeniable
STRONG
binding doomed pat
WEAK
all locked up assured compulsory decided decreed destined determined fated fateful fixed foreordained in the bag ineluctable ineludible inflexible irrevocable no ifs ands or buts obligatory ordained prescribed settled sure unalterable unpreventable without recourse
Antonyms
STRONGEST
avoidable distant escapable later
WEAK
doubtful fortuitous preventable uncertain unlikely unsure
ADJECTIVE
unmistakable
Synonyms
STRONGEST
apparent conspicuous distinct evident explicit indisputable obvious palpable pronounced straightforward unambiguous unequivocal
WEAK
clear decided glaring manifest no ifs ands or buts open and shut patent plain positive self-explanatory sure transparent univocal
Antonyms
STRONGEST
ambiguous disputable doubtful dubious equivocal hidden indefinite indistinct obscure questionable secret uncertain unclear unknown unsure vague
WEAK
doubtul mistakable
ADJECTIVE
unquestionable
Synonyms
STRONGEST
absolute indisputable self-evident undeniable unequivocal unmistakable
WEAK
accurate authentic bona fide certain clear cold conclusive dependable down pat downright established faultless flat flawless genuine incontestable incontrovertible indubitable irrefutable manifest no ifs ands or buts obvious pat patent perfect positive real reliable superior sure sure-enough true undisputable undoubted unimpeachable veritable well-founded well-grounded
Antonyms
STRONGEST
disputable indefinite uncertain unsure vague
WEAK
doubtful questionable
ADVERB
exactly
Synonyms
STRONGEST
absolutely altogether carefully completely correctly definitely explicitly indeed literally precisely quite specifically strictly totally truly
STRONG
just
WEAK
bang expressly faithfully faultlessly for a fact for sure in every respect methodically no mistake on the dot on the money on the nail on the nose positively right rigorously scrupulously severely sharp square the ticket truthfully unequivocally unerringly utterly veraciously wholly
Antonyms
STRONGEST
doubtfully dubiously incompletely indefinite partially questionably
WEAK
inaccurately inexactly
ADVERB
for sure
Synonyms
WEAK
certainly dead sure definitely for a fact for real no doubt no question no two ways about it really surely unquestionably
ADVERB
surely
Synonyms
STRONGEST
absolutely assuredly certainly clearly definitely evidently indeed inevitably inexorably plainly undoubtedly unquestionably
WEAK
admittedly beyond doubt beyond shadow of doubt come what may conclusively decidedly distinctly doubtlessly explicitly fixedly indubitably infallibly irrefutably manifestly nothing else but positively rain or shine to be sure unequivocally unerringly unfailingly unmistakably unshakably with certainty without fail
Antonyms
STRONGEST
doubtfully dubiously indefinite indefinitely questionably vaguely
WEAK
uncertain

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Verzenio, Lilly’s treatment for certain types of breast cancer, brought in $1.3 billion, outstripping consensus estimates by roughly $68 million.

From Barron's • Apr. 30, 2026

It’s also possible that punishments for certain players could be harsher than what Koepka received.

From MarketWatch • Apr. 30, 2026

In the 1950s, the Court under Warren began to tighten the rules for denaturalization on the grounds that using it as punishment for certain acts was cruel and inhuman.

From Salon • Apr. 26, 2026

"In the current situation, security considerations dictate the need for certain measures," Peskov continues.

From BBC • Apr. 24, 2026

As before, if she wanted to know for certain, she would have to find out for herself.

From "The Girl Who Drew Butterflies: How Maria Merian's Art Changed Science" by Joyce Sidman