unimplementable
uncreatable
inextricable
unperformable
unappliable
unproducible
unactable
unconstructable
unadaptably
unconstructible
inconstructible
undoable
couldn't organise a piss-up in a brewery
unachievable
unrealizable
unattainable
unfreeable
uncoinable
unfundable
uncompilable
unsimulable
unprotectable
unstartable
unestablishable
unaidable
inobtainable
unhandleable
unrepairable
unborable
uncomposable
undesignable
approachless
unactivatable
insuperable
unguidably
unimpossible
inevaluable
nonpossible
ungrowable
uncontrollable
unformable
infeasible
inaccessible
conflict
untouchable
unobtainable
unprogrammable
ununifiable
nonfeasible
unprocurable