nonlobar
nicen up
nonutile
noninteresting
unapropos
incongenial
unnoticeable
inappropo
unokay
unplain
ungreat
unregardable
nonsensible
nonlitigable
unnoteworthy
simpleminded
uncomplaisant
lamish
numbskulled
dumbassed
dog shit
cack
bull
retardical
thick
tut
numbnut
unresplendent
dumbbutt
dumb as an ox
one brick short of a full load
unfabulous
dumbish
unmarvellous
entire
unsensuous
nonsensuous
sillyish
unawesome
miscegenic
unaffixed
nonafferent
unsmutty
miscegenistic
miscegenative
undelightsome
unmarriable
nuh-uh
unplaintive
noneven