Want to say doubtful differently? Here are other words for doubtful and its similar synonyms and opposite words to say in unique way.
Synonyms
uncertain
questionable
dubious
skeptical
unsure
hesitant
ambiguous
indecisive
irresolute
tentative
provisional
inconclusive
unconvincing
suspect
shaky
unreliable
untrustworthy
precarious
risky
chancy
iffy
perilous
hazardous
dodgy
fishy
queer
suspicious
mistrustful
unbelieving
incredulous
disbelieving
unconvinced
undecided
wavering
vacillating
equivocal
vague
obscure
enigmatic
puzzling
perplexing
baffling
cryptic
mysterious
unclear
cloudy
murky
hazy
fuzzy
nebulous
ambiguous
ambivalent
mixed
conflicting
contradictory
paradoxical
incongruous
inconsistent
incoherent
illogical
unreasonable
unreasoning
irrational
unintelligible
unintelligent
senseless
nonsensical
preposterous
absurd
ridiculous
laughable
farcical
comical
humorous
ironic
satirical
sardonic
tongue-in-cheek
wry
dry
witty
clever
cunning
crafty
sly
foxy
guileful
insidious
subtle
surreptitious
stealthy
covert
clandestine
secretive
furtive
sneaky
underhanded
duplicitous
double-dealing
treacherous
perfidious
traitorous
disloyal
unfaithful
inconstant
capricious
whimsical
flighty
frivolous
giddy
lighthearted
careless
reckless
irresponsible
imprudent
incautious
rash
impulsive
impetuous
headlong
precipitate
premature
ill-considered
ill-advised
ill-judged
misguided
misinformed
misdirected
mistaken
erroneous
incorrect
false
fallacious
specious
deceptive
misleading
delusive
illusory
hallucinatory
fantastical
imaginary
unreal
fictional
fanciful
visionary
dreamy
idealistic
utopian
unrealistic
unpractical
impractical
infeasible
unworkable
unserviceable
unusable
inoperable
inapplicable
inadmissible
inadvisable
inexpedient
disadvantageous
unfavorable
unpropitious
inauspicious
adverse
antagonistic
hostile
inimical
contrary
opposite
antipathetic
averse
loath
reluctant
disinclined
unwilling
uncooperative
uncompliant
disobedient
refractory
recalcitrant
obstinate
stubborn
headstrong
willful
perverse
contrary
cantankerous
fractious
irritable
testy
touchy
querulous
petulant
peevish
cross
crabby
grumpy
grouchy
sulky
sullen
morose
glum
gloomy
dismal
dreary
depressing
disheartening
discouraging
dispiriting
unenthusiastic
unresponsive
unreactive
impassive
apathetic
indifferent
unconcerned
detached
aloof
distant
remote
unapproachable
inaccessible
inhospitable
unsympathetic
unfeeling
callous
hardhearted
insensitive
obtuse
dull
dense
stupid
foolish
silly
ridiculous
absurd
preposterous
laughable
comical
humorous
farcical
ironic
satirical
sardonic
tongue-in-cheek
wry
dry
witty
clever
cunning
crafty
sly
foxy
guileful
insidious
subtle
surreptitious
stealthy
covert
clandestine
secretive
furtive
sneaky
underhanded
duplicitous
double-dealing
treacherous
perfidious
traitorous
disloyal
unfaithful
inconstant
capricious
whimsical
flighty
frivolous
giddy
lightheed
careless
reckless
irresponsible
imprudent
incautious
rash
impulsive
impetuous
headlong
precipitate
premature
ill-considered
ill-advised
ill-judged
misguided
misinformed
misdirected
mistaken
erroneous
incorrect
false
fallacious
specious
deceptive
misleading
delusive
illusory
hallucinatory
fantastical
imaginary
unreal
fictional
fanciful
visionary
dreamy
idealistic
utopian
unrealistic
unpractical
impractical
infeasible
unworkable
unserviceable
unusable
inoperable
inapplicable
inadmissible
inadvisable
inexpedient
disadvantageous