slacker
bizarro
underproductivity
underambition
cream puff
lost soul
zhing-zhong
bottler
bottom dog
loser
underwit
low-spiritedness
simpleton
simple
underdominant
frivol
wimp
crybaby
underachiever
chicken
nonachiever
underqualification
zugzwang
fail
have-not
poor-spiritedness
sap
weenie
hit the rocks
muggins
tomfool
simp
middlebrow
subnormal
fool
mentally deficient person
saphead
unbelonging
underadditivity
neglecter
caveman
lesser mortal
underdevelopment
callow
lower one's sights
backwardness
numskull
reprobate
shortfalling
underprivilegedness
deadhead
wannabe
withdrawnness
man of straw
aloofness
weak-mindedly
standoffishness
layman
unfulfilled
with one's dick in one's hand
underthinker
remoteness
limp dick
coward
indirection
downshifter
servant
misfit
abnormal psychology
mollusc
softy
characterless
little girl
deficient
overstater
narrow-mindedness
wastoid
underratedness
young hand
sneak
not the sharpest tool in the shed
shortness
backhandedness
nonaltruist
nonadherent
disability
backwardism
bottom man
never-wozzer
throwback
not the sharpest knife in the drawer
lackwittedness
basement dweller
disassortativity
turn
not the sharpest tool in the box
small-timer
cloistered