Akademik

un|al´ter|a|ble|ness
un|al|ter|a|ble «uhn L tuhr uh buhl», adjective.
that cannot be altered; not changeable; permanent in nature; fixed: »

an unalterable policy.

SYNONYM(S): immutable.
un|al´ter|a|ble|ness, noun.

Useful english dictionary. 2012.