Synonyms of flagitious

2 Syllables
flagrant, miscreant, heinous, evil, monstrous, rotten, vicious, wicked, scurvy
3 Syllables
villainous, criminal, outrageous, ill-famed, infamous, teratoid, atrocious, praetorian, nefarious, scandalous, miscreated, unlawful
4 Syllables
unlicensed
5 Syllables
under-the-counter