false

Meaning

Adj

1. Untrue, not factual, factually incorrect.
2. Based on factually incorrect premises.
3. Spurious, artificial.
4. Of a state in Boolean logic that indicates a negative result.
5. Uttering falsehood; dishonest or deceitful.
6. Not faithful or loyal, as to obligations, allegiance, vows, etc.; untrue; treacherous.
7. Not well founded; not firm or trustworthy; erroneous.
8. Not essential or permanent, as parts of a structure which are temporary or supplemental.
9. Used in the vernacular name of a species (or group of species) together with the name of another species to which it is similar in appearance.
10. Out of tune.

Verb

1. To incorrectly decode noise as if it were a valid signal.
2. (obsolete) To violate, to betray (a promise, an agreement, one’s faith, etc.).
3. (obsolete) To counterfeit, to forge.
4. (obsolete) To make false, to corrupt from something true or real.

Adv

In a dishonest and disloyal way; falsely.

Noun

One of two options on a true-or-false test, that not representing true.

Synonyms

untrue

wrong

counterfeit

spurious

fake

sham

lying

bogus

artificial

deceptive

deceitful

incorrect

imitation

mock

erroneous

mendacious

fictitious

pretended

delusive

insincere

pseudo

untruthful

mistaken

phoney

unreal

forged

lie

phony

not true

dishonest

hypocritical

faux

simulated

shoddy

fraudulent

faked

feigned

sour

treacherous

unfaithful

quasi

dummy

duplicitous

faithlessly

disloyal

deceive

two-faced

assumed

treacherously

base

fallacious

misguided

put on

corrupt

deceiving

hollow

wrongful

mistake

false species

error

F

F

fictive

not genuine

treasonably

double-dealing

pseudo-

off-key

flawed

forced

disguised

inaccurate

traitorously

unnatural

liar

defective

unsubstantial

perfidious

perfidiously

pinchbeck

pretence

pretending

pretense

pretentious

punic

punish

reckless

renegade

ruler

say

🗣️

slavering

sneaky

stupid

supposititious

suspected

synthetical

temporary

traitorous

treasonable

treasonous

tricking

tricksy

truthless

uncareful

unfair

unfounded

unreasonable

untruth

useless

vain

vanity

venally

vicious

villainous

worthless

would-be

wrongly

wrong way

all ready

made up

be incorrect

double-minded

crime

dinted

sythetic

counter it

not meant to be performed

half-bloode

sham imitation

absurd

ingenuine

almost

apostle

artificially

at random

bad

👎

bastard

be unfaithful

be wrong

black

charlatan

clever

common

crafty

criminal

deception

deformed

delusory

dented

devious

different

discordant

disfigured

dishonourable

disingenuous

disingenuously

disorderly

dissembling

dissimulating

distorted

empty

evasive

fabricated

facetious

factitious

faithless

falsehood

false statement

falsified

fanciful

fantastic

fault

faulty

feint

fictional

flaw

forgery

fraudulently

gratis

half-breed

half-caste

idle

ignorant

illegal

illicit

imaginary

imperfect

improper

improperly

inauthentic

insincerely

in vain

jazzy

law

left

loose

mad

meretricious

misconceived

misleading

misrepresented

miss

near

negative

ordinary

out of tune

Pronounced as (IPA)

/fɔːls/

Etymology

Inherited from Middle English: false

Inherited from Old English: fals

Cognate with Anglo-Norman: -

Cognate with Old French: fals

Cognate with Scots: fals

Cognate with Saterland Frisian: falsk

Cognate with German: falsch

Cognate with Dutch: vals

Cognate with Swedish: -

Cognate with Danish: falsk

Cognate with Latin: falsus

Cognate with Middle English: les

Cognate with Old English: lēas

Inherited from Middle English: falsen

Cognate with French: fausser

In summary

From Middle English false, fals, from Old English fals (“false; counterfeit; fraudulent; wrong; mistaken”), from Latin falsus (“counterfeit, false; falsehood”), perfect passive participle of fallō (“deceive”). Reinforced in Middle English by Anglo-Norman and Old French fals, faus. Compare Scots fals, false, Saterland Frisian falsk, German falsch, Dutch vals, Swedish and Danish falsk; all from Latin falsus. Displaced native Middle English les, lese, from Old English lēas (“false”); See lease, leasing. Doublet of faux.
The verb is from Middle English falsen, falsien, from Old French falser, from Latin falsō (“falsify”), itself also from falsus; compare French fausser (“to falsify, to distort”).