abandon
absentmindedness
asininity
battiness
blankness
brainlessness
buffoonery
callowness
caprice
careless abandon
carelessness
casualness
childishness
clownishness
crackpottedness
crankiness
craziness
cursoriness
daffiness
desipience
disregard
disregardfulness
distraction
easiness
eccentricity
empty-headedness
fatuity
fatuousness
fecklessness
flightiness
flippancy
folly
foolery
foolheadedness
foolishness
forgetfulness
frivolity
frivolousness
giddiness
goofiness
hastiness
heedlessness
idiocy
imbecility
immaturity
improvidence
imprudence
inability
inadeptness
inadequacy
callousness
feebleness
hard-heartedness
idleness
impertinence
impulsiveness
inattention
indiscretion
inertness
irresponsibility
laziness
levity
listlessness
negligence
prodigality
rashness
recklessness
self-indulgence
sluggishness
wilfulness
consideration
thoughtfulness