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What is another word for fallacious?

Need synonyms for fallacious? Here's a list of similar words from our thesaurus that you can use instead.

Contexts ▼

Based on a mistaken or erroneous belief

Lacking sense or sound reasoning

Imaginary or fanciful, not existing in reality

Not based on sound reasoning or judgment

Showing a lack of common sense

Dishonest, insincere, and full of deceit

Of poor quality or a low standard

… more ▼

Adjective

Based on a mistaken or erroneous belief

unsubstantiated

without foundation

wide of the mark

misrepresentative

economical with the truth

not backed up by evidence

terminologically inexact

contrary to fact

not trustworthy

without substantiation

unstraightforward

out of commission

on the wrong track

wrongly identified

barking up wrong tree

labouring under a misapprehension

barking up the wrong tree

open to question

without justification

lacking substance

more ❯

“Professor Kirkwood speculates that people may be psychologically impelled to conform to the old fallacious idea that there is a natural pattern to life that ends in aging and death.”

Adjective

Lacking sense or sound reasoning

inconsequential

self-contradictory

without foundation

not making sense

wrongly deduced

wrongly inferred

non-sequiturial

logically fallacious

counterintuitive

unsubstantiated

won't hold water

beyond the bounds of possibility

out of the ordinary

self-contradicting

weird and wonderful

incomprehensible

beyond all reason

out of all reason

ill-thought-out

out in left field

more ❯

“The proofs are anecdotal or based on fallacious reasoning such as thinking that a correlation proves a causal connection.”

Adjective

Imaginary or fanciful, not existing in reality

phantasmagorical

phantasmagorial

phantasmagorian

out of this world

product of someone's imagination

all in one's head

out of touch with reality

created out of thin air

castles in the air

filled with dreams

unsubstantiated

head-in-the-clouds

imperceptible to the touch

with your head in the clouds

indistinguishable

incomprehensible

head in the clouds

unrecognizable^US

weird and wonderful

unrecognisable^UK

lacking definition

fool's paradise

figment of imagination

more ❯

“He had created a fallacious world in his mind, where different things of assorted colors were glorified.”

Adjective

Not based on sound reasoning or judgment

ill-thought-out

playing with fire

spur-of-the-moment

over-adventurous

spur of the moment

not recommended

not thought through

badly thought out

feather-brained

overventuresome

leaving self wide open

off the deep end

hell-for-leather

bull-in-a-china-shop

over-venturesome

asleep at the wheel

sticking one's neck out

leading with one's chin

asleep on the job

disadvantageous

jumping to conclusions

more ❯

Adjective

Showing a lack of common sense

thick as two short planks

not the full shilling

slow on the uptake

soft in the head

feather-brained

mentally deficient

as thick as two short planks

not intelligent

mentally handicapped

uncomprehending

without thought

more ❯

Adjective

Dishonest, insincere, and full of deceit

dishonourable^UK

dishonorable^US

double-crossing

not to be trusted

unsportsmanlike

not to be depended on

intentionally misleading

economical with the truth

cloak-and-dagger

under the table

snake in the grass

crazy like a fox

against the law

like a snake in the grass

not entirely truthful

terminologically inexact

under the counter

committing perjury

not trustworthy

extracurricular

all talk and no action

commiting perjury

bearing false witness

not to be relied upon

devoid of validity

hole-and-corner

playing politics

not straightforward

lacking sincerity

with tongue in cheek

insurrectionary

insurrectionist

causing trouble

destabilising^UK

destabilizing^US

more ❯

Adjective

Of poor quality or a low standard

dissatisfactory

less-than-stellar

not up to scratch

not up to snuff

bargain-basement

a load of pants

good-for-nothing

leaving much to be desired

not up to standard

cheap and nasty

not good enough

twopenny-halfpenny

no great shakes

strictly for the birds

thrown together

of poor quality

foolish-looking

lacking ability

undistinguished

end-of-the-pier

not up to expectations

beyond the pale

unable to do something to save one's life

unable to do something for toffee

leaving a lot to be desired

down-at-the-heels

of no financial value

lower in status

of little value

less than ideal

would fetch nothing

bottom-of-barrel

of negligible value

not all it's cracked up to be

unsophisticated

not worth a hill of beans

of little worth

nickel-and-dime

of little financial value

of little account

beneath someone

under someone's heel

not very important

not so important

more ❯

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Nearby Words

fallacious argument

fallacious reasoning

fallacy fallacy

fall about the place

fall about laughing

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