\Un`a*void"a*ble\, a.
1. Not avoidable; incapable of being shunned or prevented;
   inevitable; necessary; as, unavoidable troubles.
2. (Law) 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.