for certain
ADJECTIVE
inevitable
Synonyms
STRONGEST
STRONG
WEAK
Antonyms
STRONGEST
WEAK
ADJECTIVE
unmistakable
Synonyms
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
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
ADVERB
exactly
Synonyms
STRONGEST
absolutely
altogether
carefully
completely
correctly
definitely
explicitly
indeed
literally
precisely
quite
specifically
strictly
totally
truly
STRONG
WEAK
Antonyms
ADVERB
for sure
Synonyms
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
From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.