indiscreetness
fuzzy-wuzzy
unsympathetic
unclear
vacuously
unimaginativeness
woolly-headed
dull-witted
whifty
stumpiness
doltish
heck-care
fuzzified
twi-minded
forgetfulness
moony
underimagined
anoetic
twithought
uncollected
feeblemindedness
unneatness
inobservant
unreflective
bland
cum grano salis
unthoughtful
inconsideration
foresightlessness
imaginationless
myopic
omphalocentric
thoughtlessly
frowstiness
afterwit
apprehensiveness
jellybrain
mindless
unaware
not see straight
nondiligence
unskeptical
inconcinnity
lightheadedness
with a grain of salt
few sandwiches short of a picnic
dullness