careless
adjective
[ ˈkɛːləs ]
• not giving sufficient attention or thought to avoiding harm or errors.
• "she had been careless and had left the window unlocked"
Similar:
inattentive,
incautious,
negligent,
remiss,
forgetful,
absent-minded,
heedless,
irresponsible,
impetuous,
reckless,
sloppy,
couldn't care less,
slap-happy,
shoddy,
slapdash,
slipshod,
scrappy,
slovenly,
unconsidered,
amateurish,
lax,
slack,
wild,
disorganized,
hasty,
hurried,
perfunctory,
cursory,
thrown together,
sketchy,
hit-or-miss,
inaccurate,
imprecise,
inexact,
incorrect,
wrong,
erroneous,
error-ridden,
scatterbrained,
thoughtless,
unthinking,
insensitive,
indiscreet,
unguarded,
ill-advised,
ill-considered,
ill-thought-out,
unwise,
misguided,
inadvertent,
rash,
foolhardy,
spur-of-the-moment,
hare-brained,
negligent in,
mindless of,
heedless of,
improvident about,
unconcerned about,
indifferent to,
oblivious to,
reckless about,
remiss in,
slapdash about,
slipshod about,
frivolous about,
sloppy in,
messy in,
half-arsed,
half-assed,
Origin:
Old English carlēas ‘free from care’ (see care, -less).
