inadequate
insusceptible
unable
unequal
unsusceptible
amputee
cripple
defective
deficient
deformity
disqualified
dull tool
greenhorn
handicapped person
idiot
ill-equipped
ill-fitted
ill-furnished
ill-provided
ill-qualified
imbecile
impervious to
incapable of
incompetent
ineffective
ineffectual
inefficient
inept
inferior
insufficient
maladjusted
mediocrity
no conjuror
not equal to
not up to
paralytic
paraplegic
quadriplegic
simpleton
the crippled
the handicapped
unable to
unadapted
unadjusted
unarmed
unendowed
unequal to
unequipped
afraid
aware
capable
degree
devoid
guilty
ignorant
lack
necessity
possibility
proof
semblance
spite
susceptible
trace
unworthy
inescapable
able