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1. Characterized by extremely brutal or cruel crimes; vicious.
2. Infamous; scandalous: "That remorseless government persisted in its flagitious project" (Robert Southey).

[Middle English flagicious, wicked, from Latin flāgitiōsus, from flāgitium, shameful act, protest, from flāgitāre, to importune, to demand vehemently.]

fla·gi′tious·ly adv.


atrociously wicked; vicious; outrageous
[C14: from Latin flāgitiōsus infamous, from flāgitium a shameful act; related to Latin flagrum whip]
flaˈgitiously adv
flaˈgitiousness n


(fləˈdʒɪʃ əs)

heinous or flagrant, as a crime; infamous.
[1350–1400; Middle English flagicious < Latin flāgitiōsus, derivative of flāgiti(um) shame, scandal]
fla•gi′tious•ly, adv.
fla•gi′tious•ness, n.


- Criminally wicked.
See also related terms for wicked.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.flagitious - extremely wicked, deeply criminalflagitious - extremely wicked, deeply criminal; "a flagitious crime"; "heinous accusations"
wicked - morally bad in principle or practice
2.flagitious - shockingly brutal or cruelflagitious - shockingly brutal or cruel; "murder is an atrocious crime"; "a grievous offense against morality"; "a grievous crime"; "no excess was too monstrous for them to commit"
evil - morally bad or wrong; "evil purposes"; "an evil influence"; "evil deeds"


Utterly reprehensible in nature or behavior:
References in classic literature ?
All faults or defects, from the slightest misconduct to the most flagitious crime, Pantocyclus attributed to some deviation from perfect Regularity in the bodily figure, caused perhaps(if not congenital) by some collision in a crowd; by neglect to take exercise, or by taking too much of it; or even by a sudden change of temperature, resulting in a shrinkage or expansion in some too susceptible part of the frame.
A day of obstacles to thy flagitious returns in the morning.
FLAGITIOUS A French wind instrument B Variety of kidney bean C Grossly wicked who am I?
Such a flagitious attempt could only be made tinder some general pretense by a state legislature.
The words are to be found on page 89, in the remark ["G"] made on the seeming paradox; that in the grumbling hive The worst of all the multitude / Did something for the common good: Where in many instances may be amply discovered, how unsearchable Providence daily orders the comforts of the laborious, and even the deliverances of the oppressed, secretly to come forth not only from the vices of the luxurious, but likewise the crimes of the flagitious and most abandoned" (I:403-1).
Such a flagitious attempt could only be made under some general pretence [sic] by a state legislature.
Is Professor Wilson advocating that a flagitious category A inmate, deemed to be a danger to the state, not to carry a category A status, being handed over from officer to officer with a passport book and being physically supervised every 15 minutes day and night, wearing easily recognised prison clothing?
Such a flagitious attempt could only be made under a general pretense by a state legislature.
More than any other consideration, it will confound our foreign enemies, defeat the flagitious practices of the disaffected, strengthen and confirm our friends, support our public credit, restore the value of our money, enable us to maintain our fleets and armies, and add weight and respect to our councils at home, and to our treaties abroad.