subsagittate
subramose
nonperforming
subpinnate
unflourishing
unfulfilled
dysfunctionality
subhirsute
fail
touched in the head
shortcoming
subramous
slumpy
let the grass grow under one's feet
amiss
copout
nonfulfilling
unappeasable
uneffigiated
inefficaciousness
virtueless
bite the big one
successlessness
unsuccess
blemished
mal-
declinal
go nowhere
defect
inoptimally
rilesome
cumbersome
nonsuccessful
subconvoluted
bog down
exasperatingly
subappressed
heteroclite
unformed
clumsies
nonviable
pseudodeficient
streaky
lackless
subacrodrome
pseudodeficiency
doggishness
unconditioned
forlorn
nonoptimizable