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Sure
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sure
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abiding
absolute
absolutely
accurate
all right
arrogant
assured
authentic
beyond doubt
beyond question
bound
categorical
certain
certainly
changeless
clean cut
clear
cocksure
composed
conclusive
confident
confirmed
constant
convinced
convincing
credible
dead
deadly
decided
decisive
definite
definitely
definitive
dependable
destined
determinate
determined
dogged
doomed
doubtless
effective
emphatic
enduring
established
explicit
factual
fail-safe
faithful
fast
fated
final
firm
fixed
flat
foolproof
foreordained
free from doubt
genuine
good
guaranteed
hard
in the bag
inarguable
incontestable
incontrovertible
indisputable
indubitable
indubitably
ineluctable
ineludible
inerrant
inescapable
inevitable
infallible
irrefragable
irrefutable
irrevocable
likely
loyal
necessary
never-failing
obviously
of course
ok
persistent
persuaded
positive
predestined
predictable
proven
real
reliable
resolute
responsible
right
safe
satisfied
secure
self evident
self-assured
self-confident
self-possessed
set
settled
solid
stable
staunch
steadfast
steady
strong
strong-minded
sure thing
sure-fire
surefire
surely
telling
tenacious
tried and true
true
true-blue
trusted
trustworthy
trusty
unambiguous
unanswerable
unassailable
unavoidable
unchangeable
unchanging
uncompromising
undeniable
undeniably
undisputed
undoubted
undoubtedly
unequivocal
unerring
unfailing
unfaltering
unhesitating
univocal
unmistakable
unmistakably
unqualified
unquestionable
unquestioning
unshakable
unshakeable
unshaken
unvarying
unwavering
valid
very likely
watertight
yes
you bet
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