Cain, Judas, apache, assassin, assassinator, badman, bandit, betrayer, bloodletter, bloodshedder, bravo, bucko, bully, bullyboy, burker, butcher, button man, cannibal, convict, criminal, crook, cutthroat, deceiver, desperate criminal, devil, double-dealer, eradicator, executioner, exterminator, felon, fugitive, gallows bird, gangster, gaolbird, garroter, gorilla, gun, gunman, gunsel, hatchet man, head-hunter, hell-raiser, hellcat, hit man, homicidal maniac, homicide, jailbird, killer, lawbreaker, mad dog, man-eater, man-killer, manslayer, massacrer, matador, mobster, murderer, outlaw, pesticide, poison, poisoner, public enemy, quisling, racketeer, rough, rowdy, ruffian, scofflaw, slaughterer, slayer, strangler, swindler, thief, thug, torpedo, traitor, trigger man, two-timer
rashness, temerity, want of caution, imprudence, indiscretion, overconfidence, presumption, audacity, precipitancy, precipitation, impetuosity, levity, foolhardihood, foolhardiness, heedlessness, thoughtlessness, carelessness, desperation, Quixotism, knight-errantry, fire eating, gaming, gambling, blind bargain, leap in the dark, leap of faith, fool's paradise, too many eggs in one basket, desperado
, rashling, madcap, daredevil, Hotspur, fire eater, bully, bravo, Hector, scapegrace, enfant perdu, Don Quixote, knight-errant, Icarus, adventurer, gambler, gamester, dynamitard, boomer, rash, incautious, indiscreet, imprudent, improvident, temerarious, uncalculating, heedless, careless, without ballast, heels over head, head over heels, giddy, wanton, reckless, wild, madcap, desperate, devil-may-care, hot-blooded, hotheaded, hotbrained, headlong, headstrong, breakneck, foolhardy, harebrained, precipitate, impulsive, overconfident, overweening, venturesome, venturous, adventurous, Quixotic, fire eating, cavalier, janty, jaunty, free and easy, off one's guard, post haste, a corps perdu, hand over head, tete baissee, headforemost, happen what may, come what may, neck or nothing, the devil being in one, non semper temeritas est felix, paucis temeritas est bono multis malo.
blusterer, swaggerer, vaporer, roisterer, brawler, fanfaron, braggart, bully, terrorist, rough, bulldozer, hoodlum, hooligan, larrikin, roarer, Mohock, Mohawk, drawcansir, swashbuckler, Captain Bobadil, Sir Lucius O'Trigger, Thraso, Pistol, Parolles, Bombastes Furioso, Hector, Chrononhotonthologos, jingo, desperado
, dare-devil, fire eater, fury, rowdy, slang-whanger, tough, puppy, prig, Sir Oracle, dogmatist, doctrinaire, jack-in-office, saucebox, malapert, jackanapes, minx, bantam-cock.
evil doer, evil worker, wrongdoer, mischief-maker, marplot, oppressor, tyrant, destroyer, Vandal, iconoclast, firebrand, incendiary, fire bug, pyromaniac, anarchist, communist, terrorist, savage, brute, ruffian, barbarian, semibarbarian, caitiff, desperado
, Apache, hoodlum, hood, plug-ugly, Red Skin, tough, Mohawk, Mo-hock, Mo-hawk, bludgeon man, bully, rough, hooligan, larrikin, dangerous classes, ugly customer, thief, cockatrice, scorpion, hornet, snake, viper, adder, snake in the grass, serpent, cobra, asp, rattlesnake, anaconda, canker-worm, wire-worm, locust, Colorado beetle, alacran, alligator, caymon, crocodile, mosquito, mugger, octopus, torpedo, bane, cutthroat, cannibal, anthropophagus, anthropophagist, bloodsucker, vampire, ogre, ghoul, gorilla, vulture, gyrfalcon, gerfalcon, wild beast, tiger, hyena, butcher, hangman, blood-hound, hell- hound, sleuth-hound, catamount, cougar, jaguar, puma, hag, hellhag, beldam, Jezebel, monster, fiend, devil incarnate, demon in human shape, Frankenstein's monster, harpy, siren, Furies, Eumenides, Hun, Attila, scourge of the human race, faenum habet in cornu.