The adjective resigned means you have accepted something because you cannot change it and it will happen eventually.

Synonyms are enduring, passive, satisfied, or yielding.

The word origins from Old French (13th century) resigner meaning “renounce, relinquish”, and Latin resignare meaning “to check off, annul, cancel, give back, give up”. It comes from re– meaning “opposite” plus signare meaning “to make an entry in an account book”, literally “to mark”, from Latin signum meaning “identifying mark, sign”.

They are resigned to the fact that their fate is inevitable. 

He was resigned to the idea that his looks will always make him the center of attention.

The community was resigned to the truth that their beloved governor actually committed the crime.