Dictionary.com
Thesaurus.com
Synonyms

egregious

American  
[ih-gree-juhs, -jee-uhs] / ɪˈgri dʒəs, -dʒi əs /

adjective

  1. extraordinary in some bad way; glaring; flagrant.

    an egregious mistake; an egregious liar.

    Synonyms:
    shocking, notorious, outrageous, gross
    Antonyms:
    unnoticeable, minor, moderate, tolerable
  2. Archaic. distinguished or eminent.


egregious British  
/ -dʒɪəs, ɪˈɡriːdʒəs /

adjective

  1. outstandingly bad; flagrant

    an egregious lie

  2. archaic distinguished; eminent

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Etymology

Origin of egregious

First recorded in 1525–35; from Latin ēgregius “preeminent, outstanding,” equivalent to ē- + greg-, stem of grēx “flock” + -ius adjective suffix; see e- 1, -ous

Explanation

Something that is egregious stands out, but not in a good way — it means "really bad or offensive." If you make an egregious error during a championship soccer match, your coach might bench you for the rest of the game. An egregious error is so bad that it might not be forgivable. Some synonyms are appalling and intolerable. The word has made a 180-degree turn from its original sense in Latin, when it meant "exceptionally good." Word historians have speculated that the negative usage was originally meant to be ironic, but it is the only sense that has survived. Be careful not to use it to mean "outstanding," since no one wants to be called egregious.

Keep Reading on Vocabulary.com

Vocabulary lists containing egregious

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Even more egregious is the case of AI companies buying and destroying rare books en masse in the process of scanning them for data.

From Salon Jul. 28, 2026

Nigerian diplomat Ninikanwa Okey-Uche said her country was "deeply appalled by reports of the egregious police tactics that led to his death" on Thursday.

From BBC Jul. 27, 2026

“This is an egregious loophole we’ve got to close,” Wyden said.

From The Wall Street Journal Jul. 22, 2026

But was it an egregious, personal error, akin to Totenberg stealing into Alito’s hotel room and absconding with an internal organ, as it has been widely treated?

From Slate Jul. 2, 2026

Ridgeway commanded his appetites in those days, withdrawing before his confederates’ more egregious displays.

From "The Underground Railroad: A Novel" by Colson Whitehead

Vocabulary.com logo
by dictionary.com

Dictionary.com's Learning Companion

Go beyond just looking up words.
Remember them forever with VocabTrainer.

Start training