This article seeks to resolve one sort of underspecification paradox,
by harnessing the notions of constraint ranking and violability provid
ed by Optimality Theory (OT). Though output underspecification is main
tained, it does not pattern in the all-or-nothing way predicted by kno
wn theories; further, it is an emergent property of the grammar, leadi
ng to rejection of the traditional reliance on feature minimization in
underlying representations, a notion that is not compatible with OT's
output-oriented perspective. The empirical focus is on nasal-obstruen
t (NC) voicing in Japanese; major issues addressed include feature lic
ensing, the hypothesis that segment similarity constrains feature inte
raction, and the relation between output forms and underlying represen
tations.