independent
attributable
autonomous
defenseless
foolproof
frictionless
illegible
inaudible
law-abiding
public-spirited
sedentary
self-contained
self-controlled
self-governing
self-reliant
self-respecting
self-sufficient
self-sufficing
self-sustaining
sober-minded
undefended
undetectable
unify
unrecognizable
unscathed