ill-considered
ill-judged
improvident
indiscreet
injudicious
rash
shortsighted
blanket
brash
brazen
brazenfaced
careless
casual
crazy
foolhardy
foolish
general
hasty
heedless
hubristic
ill-advised
ill-contrived
ill-devised
ill-gauged
impetuous
impolitic
improper
impudent
impulsive
inadvisable
inane
incautious
inconsiderate
indiscriminate
indiscriminative
inexpedient
insane
insensate
insensitive
insolent
irrational
irresponsible
mad
mindless
misadvised
misguided
illogical
indecent
presumptuous
reckless
risky
sinful
thoughtless
unfair
unkind
unwarranted
unwise
prudent
student