portentous(redirected from portentousness)
Also found in: Dictionary, Thesaurus.
portentous(Eliciting amazement), adjective amazing, astonishing, breathtaking, exceptional, extraordinary, great, inconceivable, incredible, indescribable, marvelous, miraculous, notable, noteworthy, novel, out of the orrinary, outstanding, phenomenal, prodigal, prodigious, rare, remarkable, shocking, singular, staggering, startling, stirring, striking, stupendous, superb, superlative, surprising, tremendous, uncustomary, unexampled, unheard of, unique, unparalleled, unprecedented, unusual, wonderful, wondrous
portentous(Ominous), adjective alarming, augural, augurous, baleful, black, bodeful, boding, cautionary, dark, dire, direful, divinatory, doomful, dread, dreadful, dreary, fateful, fatiloquent, fearful, forbidding, foreboding, forewarning, forthcoming, frightening, frightful, gloomy, grim, haunting, heralding, ill-boding, ill-fated, inauspicious, indicative, intimidating, mantic, minacious, minatorial, minatory, monitory, ominous, oracular, perilous, portending evil, premonitive, presageful, presaging, presentient, prophetic, prophetical, pythonic, sibylline, sinister, somber, suggestive, threatening, unpropitious
See also: dire, imminent, important, ominous, oracular, presageful, prophetic, unusual