FLAGITIOUS
atrocious, flagitious, grievous, monstrous
(adjective) 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”
flagitious, heinous
(adjective) extremely wicked, deeply criminal; “a flagitious crime”; “heinous accusations”
Source: WordNet® 3.1
Etymology
Adjective
flagitious (comparative more flagitious, superlative most flagitious)
(literary) (of people) Guilty of terrible crimes; wicked, criminal.
(literary) Extremely brutal or wicked; heinous, monstrous.
Synonyms
• (extremely brutal or cruel): infamous, scandalous, nefarious, iniquitous
Source: Wiktionary
Fla*gi"tious, a. Etym: [L. flagitiosus, fr. flagitium a shameful or
disgraceful act, orig., a burning desire, heat of passion, from
flagitare to demand hotly, fiercely; cf. flagrare to burn, E.
flagrant.]
1. Disgracefully or shamefully criminal; grossly wicked; scandalous;
shameful; -- said of acts, crimes, etc.
Debauched principles and flagitious practices. I. Taylor.
2. Guilty of enormous crimes; corrupt; profligate; -- said of
persons. Pope.
3. Characterized by scandalous crimes or vices; as, flagitious times.
Pope.
Syn.
– Atrocious; villainous; flagrant; heinous; corrupt; profligate;
abandoned. See Atracious.
– Fla*gi"tious*ly, adv.
– Fla*gi"tious*ness, n.
A sentence so flagitiously unjust. Macaulay.
Source: Webster’s Unabridged Dictionary 1913 Edition