ultimation /ˌʌltɪˈmeɪʃən/ noun2 •(nonstandard) ultimatumStuart used to try to do everything his mum asked of him so he gave me an ultimation him or the baby. — 2015 •(no longer used) The state of being ultimate; that which is ultimate or final.to know the real ultimation, as it is termed, of France upon the general plan of peace — 1758