portentous Synonyms

grandiloquent overblown prodigious pontifical fateful foreboding pompous pontific phenomenal unpromising outstanding oracular ominous monitory momentous minatory minacious premonitory prescient unpropitious ill-fated meaningful weighty vital unlucky threatening substantial solemn sinister significant serious remarkable prophetic menacing material crucial critical constitutive consequential bodeful baleful auspicial augurous augurial augural astounding apocalyptical apocalyptic delphic dire