Definition of "egregious"

I cannot cross my arms, or sigh "Ah me," / "Ah me forlorn!" egregious foppery! / I cannot buss thy fill, play with thy hair, / Swearing by Jove, "Thou art most debonnaire!"

16thC, Christopher Marlowe, Ignoto

My lord, you give me most egregious indignity.

c. 1604–1605 (date written), William Shakespeare, “All’s Well, that Ends Well”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, [Act II, scene iii]

Good Heaven! when we observe what egregious nonsense other people talk, what woful follies other people commit, sure we must be tempted to turn upon ourselves and ask—"What do I do that is equally silly?"

1834, L[etitia] E[lizabeth] L[andon], chapter XXXI, in Francesca Carrara. […], volume III, London: Richard Bentley, […], (successor to Henry Colburn), page 257

When the goal is simply to be as faithful as possible to the material—as if a movie were a marriage, and a rights contract the vow—the best result is a skillful abridgment, one that hits all the important marks without losing anything egregious.

22 March 2012, Scott Tobias, AV Club The Hunger Games

She's sitting opposite a window that's gently breezing into her face, wafting her hair into cover-girl perfection ... It's a little moment that seems to encapsulate her appeal: ... her gorgeousness being so egregious that even breezes oblige with their tousle-fanning effects ...

2014 January 21, Hermione Hoby, “Julia Roberts interview for August: Osage County – 'I might actually go to hell for this ...': Julia Roberts reveals why her violent, Oscar-nominated performance in August: Osage County made her feel 'like a terrible person' ”, in The Daily Telegraph (Review)‎

Tuc[ca]. […] Can thy Author doe it impudently enough? / Hiſt[rio]. O, I warrant you, Captaine: and ſpitefully inough too; he ha's one of the moſt ouerflowing villanous wits, in Rome. He will ſlander any man that breathes; If he diſguſt him. / Tucca. I'le know the poor, egregious, nitty Raſcall; and he haue ſuch commendable Qualities, I'le cheriſh him: […]

1601, Ben Jonson, Poetaster or The Arraignment: […], London: […] [R. Bradock] for M[atthew] L[ownes] […], published 1602, Act III