Englishegregious
adjective
an egregious error of judgment:
shocking, appalling, horrific, horrifying, horrible, terrible, awful, dreadful, grievous, gross, ghastly, hideous, horrendous, frightful, atrocious, abominable, abhorrent, outrageous;
monstrous, nightmarish, heinous, harrowing, dire, unspeakable, shameful;
flagrant, glaring, blatant, scandalous, unforgivable, unpardonable, intolerable.
▷antonyms marvelous.