undespairing undespairingly undespatched undesponding undespotic undestroyable undestroyed undetachable undetached undetailed
| undetectable undetectably undetected undeteriorated undeterminable undeterminacy (current term) undeterminate undeterminated undetermination undetermined
| undetermined nitrogen undeterrable undeterred undeterredly undetonated undeuterated undevelopable undeveloped undevelopedness undevelopt
|