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What is another word for not conscientious?

Need synonyms for not conscientious? Here's a list of similar words from our thesaurus that you can use instead.

Adjective
Not able to be depended or relied upon (for stability)
unreliable
capricious
erratic
faithless
fickle
inconstant
irregular
mutable
reckless
undependable
unpredictable
untrustworthy
disreputable
flighty
unstable
untrue
flakeyUS
flakyUK
volatile
changeable
unsteady
variable
inconsistent
mercurial
fluctuating
temperamental
unsettled
fluid
changeful
uncertain
skittish
flickery
wavering
protean
shifting
varying
changing
vacillating
ever-changing
labile
uneven
impulsive
whimsical
wayward
blowing hot and cold
kaleidoscopic
mobile
fitful
quicksilver
up and down
fluctuant
movable
moody
chameleon-like
chameleonic
yo-yo
up-and-down
up in the air
excitable
irrepressible
unfaithful
false
irresolute
vagarious
treacherous
disloyal
active
giddy
elastic
traitorous
full of ups and downs
perfidious
bipolar
deceitful
recreant
turbulent
unfixed
spasmodic
iffy
variational
random
waffling
false-hearted
peaky
cheating
dubious
unequal
deceiving
roving
versatile
floating
wandering
rambling
oscillating
desultory
moving
scattershot
two-faced
swaying
double-dealing
two-timing
double-crossing
Janus-faced
wild
unbalanced
flexible
duplicitous
alterable
stayless
shapeshifting
arbitrary
adaptable
fluky
insincere
spotty
everchanging
jerky
forsworn
flickering
intermittent
dynamic
ephemeral
transitory
not constant
alternating
deviating
frivolous
unequable
patchy
nonuniform
sporadic
momentary
fleeting
transient
rapidly changing
short-lived
impermanent
shifty
checkeredUS
chequeredUK
slippery
episodic
altering
haphazard
unmethodical
discontinuous
developing
growing
episodical
always changing
vicissitudinous
transitional
restless
variant
agitated
vagrant
indecisive
dishonest
adulterous
untruthful
unloyal
double-faced
back-stabbing
meandering
directionless
dicey
undirected
incalculable
nomadic
“Environmental liability is not about punishing old ladies who when out walking their dogs are not conscientious about clearing up after their little darlings.”
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See Also

Nearby Words
not consider
not considered
not considering
not considers
not consistent
not consistently
not connected with
not connected
not conform to
not conforms
not conforming
not conformed
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