N pitfall, rocks, reefs, coral reef, sunken rocks, snags, sands, quicksands, syrt, syrtis, Goodwin sands, sandy foundation, slippery ground, breakers, shoals, shallows, bank, shelf, flat, lee shore, ironbound coast, rock ahead, breakers ahead, precipice, maelstrom, volcano, ambush, pitfall, trapdoor, trap, sword of Damocles, wolf at the door, snake in the grass, death in the pot, latency, ugly customer, dangerous person, le chat qui dort, firebrand, hornet's nest, latet anquis in herba, proximus ardet Ucalegon.
N 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.
N bad man, wrongdoer, worker of iniquity, evildoer, sinner, the wicked, bad example, villain, rascal, scoundrel, miscreant, budmash, caitiff, wretch, reptile, viper, serpent, cockatrice, basilisk, urchin, tiger, monster, devil, devil incarnate, demon in human shape, Nana Sahib, hellhound, hellcat, rakehell, bad woman, jade, Jezebel, scamp, scapegrace, rip, runagate, ne'er-do-well, reprobate, scalawag, scallawag, rou_e, rake, Sadist, skeesicks, skeezix, limb, one who has sold himself to the devil, fallen angel, ame damnee, vaurien, mauvais sujet, loose fish, sad dog, rounder, lost sheep, black sheep, castaway, recreant, defaulter, prodigal, rough, rowdy, hooligan, tough, ugly customer, mean mother, ruffian, bully, meanie, Jonathan Wild, hangman, incendiary, arsonist, fire bug, thief, murderer, terrorist, culprit, delinquent, crook, hoodlum, hood, criminal, thug, malefactor, offender, perpetrator, perp, disorderly person, misdemeanant, outlaw, scofflaw, vandal, felon, (convicted criminal), criminal, convict, prisoner, inmate, jail bird, ticket of leave man, multiple offender, blackguard, polisson, loafer, sneak, rapscallion, rascallion, cullion, mean wretch, varlet, kern, ame-de-boue, drole, cur, dog, hound, whelp, mongrel, lown, loon, runnion, outcast, vagabond, rogue, ronian, scum of the earth, riffraff, Arcades ambo, Int, sirrah!, Acherontis pabulum, gibier de potence.