21
outrageous(adjective, bad, severe, offensive, shocking)
18
glaring(adjective, good, bad, gross)
17
flagrant(adjective, good, bad, severe, shame)
15
gross(adjective, good, bad, wrong, severe)
14
awful
14
monstrous(adjective, bad, awful, terrible, extreme)
11
heinous(adjective, bad, wrong, severe, evil)
11
atrocious(adjective, bad, wrong, awful, terrible)
10
rank(noun, adjective, good, bad, evil)
8
arrant(adjective, good, bad)
8
excessive(adjective, severe, harsh, offensive, exceptional)
8
grievous(adjective, bad, severe, painful)
8
sinful(evil, shocking, shameful, disgraceful, naughty)
7
infamous(adjective, bad, evil, offensive, unpleasant)
7
extreme(adjective, bad, offensive, unusual, special)
7
preposterous(adjective, bad, extreme, immoral, shocking)
7
shocking(adjective, bad, awful, terrible, extreme)
6
conspicuous
6
appalling
6
crying
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APASmart Define. (2015). egregious thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/egregious/thesaurus/synonyms
ChicagoSmart Define. 2015. "egregious thesaurus" https://smartdefine.org/egregious/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, egregious thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/egregious/thesaurus/synonyms>.
MLASmart Define. "egregious thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/egregious/thesaurus/synonyms>