Unavoidable

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. 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.

Adj.

1.

unavoidable - impossible to avoid or evade:"inescapable conclusion"; "an ineluctable destiny"; "an unavoidable accident" Synonyms: ineluctable, inescapable

definite, destined, determined, fated, fateful, fixed, indefeasible, ineluctable, ineludible, inevasible, inexorable, inflexible, irresistible, irrevocable, necessary, predestined, predetermined, relentless, resistless, settled, sure, sure as death, sure as fate, unalterable, unchangeable, uncontrollable, undeflectable, unevadable, unpreventable, unstoppable, unyielding