UNAUTHORIZE
Un*au"thor*ize, v. t. Etym: [1st pref. un- + authorize.]
Defn: To disown the authority of; to repudiate.
UNAVOIDABLE
Un`a*void"a*ble, a.
1. Not avoidable; incapable of being shunned or prevented; inevitable; necessary; as, unavoidable troubles.
2. (Law)
Defn: Not voidable; incapable of being made null or void. Blackstone. Unavoidable hemorrhage (Med.), hemorrhage produced by the afterbirth, or placenta, being situated over the mouth of the womb so as to require detachment before the child can be born. — Un`a*void"a*ble*ness, n. — Un`a*void"a*bly, adv.
UNAVOIDED
Un`a*void"ed, a.
1. Not avoided or shunned. Shak.
2. Unavoidable; inevitable. [Obs.] B. Jonson.
UNAWARE
Un`a*ware", a.