iunno
no idea
don't ask me
search me
beats me
your guess is as good as mine
you tell me
DK
fuck knows
you ask me, I ask who
nonfamiliar
donchaknow
noncertain
uncertain
nonprecise
unprecise
head-scratching
bollix
dudder
confusement
unfamiliarized
puzzly
unknown
don't-know
fuck if I know
muddy
nonclear
nubilous
mazy
undetailed
nondefinite
nondetailed
fugg
not have the faintest
AFAIC
not have the faintest idea
unexact
gnomesayin
confuzzlement
to my knowledge
boggler
perplexing
unelaborated
amphibological
confuzzling
suspensory
ion
nondefinitive
elusive
addled
imprecise
enquiry
unsurely
?
at sixes and sevens
all sixes and nines
unapprehended
mysterious
nonunderstood
obscure
exiguously
ununderstood
unfamiliar
befuzzled
head-scratcher
unevident
hint
you'll never guess
microclue
dunno
non constat
non-obvious
unobvious
nonobvious
Scooby-Doo
uncertainty
unexperienced
nonknowable
wilsome
nonascertainable
confuse
warple
fruit dot
adiagnostic
bifarious
neurilemmal
indefinite
muddlingly
unknowable
knowledgelessness
who's to say?
unconfirmable
involute
cloudy
mind-boggler
feel
nonfamiliar
noncertain
uncertain
nonprecise
unprecise
unfamiliarized
puzzly
unknown
muddy
nonclear
nubilous
mazy
undetailed
nondefinite
nondetailed
unexact
perplexing
unelaborated
amphibological
confuzzling
suspensory
nondefinitive
elusive
addled
imprecise
unapprehended
mysterious
nonunderstood
obscure
ununderstood
unfamiliar
befuzzled
unevident
non-obvious
unobvious
nonobvious
unexperienced
nonknowable
wilsome
nonascertainable
adiagnostic
bifarious
neurilemmal
indefinite
unknowable
unconfirmable
involute
cloudy
to my knowledge
unsurely
exiguously
muddlingly
head-scratching
bollix
dudder
confusement
don't-know
fugg
confuzzlement
boggler
enquiry
?
head-scratcher
hint
microclue
Scooby-Doo
uncertainty
fruit dot
knowledgelessness
mind-boggler
feel
not have the faintest
not have the faintest idea
bollix
confuse
warple
English words for 'I don't know.'
As you may have noticed, above you will find words for "I don't know.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.
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