THESAURUS
Sinister
adverse, amoral, antagonistic, apocalyptic, backhand, backhanded, bad, baleful, baneful, base, black, bodeful, boding, circuitous, conflicting, conscienceless, contrary, corrupt, corrupted, counter, counteractive, counterclockwise, criminal, crooked, dark, deflectional, detrimental, deviant, deviative, devious, diabolical, difficult, digressive, dire, disastrous, dishonest, dishonorable, divagational, divergent, doomful, doubtful, dreary, dubious, evasive, evil, evil-starred, excursive, fateful, felonious, fishy, foreboding, fraudulent, furtive, gloomy, hard, harmful, hostile, ill, ill-boding, ill-fated, ill-got, ill-gotten, ill-omened, ill-starred, immoral, improper, in opposition, inaccurate, inauspicious, indirect, inexpedient, inferior, inimical, insidious, invalid, larboard, left, left-hand, left-handed, left-wing, left-wingish, levorotatory, liberal, lowering, malefic, maleficent, malevolent, malicious, malign, malignant, menacing, minacious, minatory, miserable, near, nefarious, nigh, not easy, not kosher, oblique, of evil portent, ominous, opposed, opposing, opposite, peccant, pernicious, port, portending, portentous, questionable, radical, rigorous, rotten, shady, shameless, shifty, side, sidelong, sinful, sinistral, sinistrocerebral, sinistrocular, sinistrogyrate, sinistrorse, slippery, sneaky, somber, stressful, suspicious, threatening, treacherous, tricky, troublesome, troublous, trying, unconscienced, unconscientious, unconscionable, underhand, underhanded, unethical, unfavorable, unfortunate, unhealthy, unkind, unlucky, unpleasant, unprincipled, unpromising, unpropitious, unsavory, unscrupulous, unskillful, unstraightforward, untoward, vicious, villainous, wicked, without remorse, without shame, wretched, wrong
ROGET THESAURUS
Sinister
Badness
N
badness, hurtfulness, virulence, evil doer, bane, plague spot, evil star, ill wind, hoodoo, Jonah, snake in the grass, skeleton in the closet, amari aliquid, thorn in the side, malignity, malevolence, tender mercies, ill-treatment, annoyance, molestation, abuse, oppression, persecution, outrage, misusage, injury, knockout drops, badness, peccancy, abomination, painfulness, pestilence, guilt, depravity, hurtful, harmful, scathful, baneful, baleful, injurious, deleterious, detrimental, noxious, pernicious, mischievous, full of mischief, mischief-making, malefic, malignant, nocuous, noisome, prejudicial, disserviceable, disadvantageous, wide-wasting, unlucky, sinister, obnoxious, untoward, disastrous, oppressive, burdensome, onerous, malign, corrupting &c (corrupt), virulent, venomous, envenomed, corrosive, poisonous, deadly, destructive, inauspicious, bad, ill, arrant, as bad as bad can be, dreadful, horrid, horrible, dire, rank, peccant, foul, fulsome, rotten, rotten at the core, vile, base, villainous, mean, injured, deteriorated, unsatisfactory, exceptionable indifferent, below par, illcontrived, ill-conditioned, wretched, sad, grievous, deplorable, lamentable, pitiful, pitiable, woeful, evil, wrong, depraved, shocking, reprehensible, hateful, hateful as a toad, abominable, detestable, execrable, cursed, accursed, confounded, damned, damnable, infernal, diabolic, unadvisable, unprofitable, incompetent, irremediable, badly, wrong, ill, to one's cost, where the shoe pinches, bad is the best: the worst come to the worst, herba mala presto cresco, wrongs unredressed or insults unavenged.
Sinistrality
N
sinistrality, left, left hand, a gauche, sinister, nearside, larboard, port, left-handed, sinister, sinistral, sinistrorsal, sinistrorse, sinistrous, laevo-, sinistrally, sinistrously,
sinistrality, left, left hand, a gauche, sinister, nearside, larboard, port, left-handed, sinister, sinistral, sinistrorsal, sinistrorse, sinistrous, laevo-, sinistrally, sinistrously.
Vice
N
vice, evil-doing, evil courses, wrongdoing, wickedness, viciousness, iniquity, peccability, demerit, sin, Adam, old Adam, offending Adam, immorality, impropriety, indecorum, scandal, laxity, looseness of morals, enphagy, dophagy, exophagy, want of principle, want of ballast, obliquity, backsliding, infamy, demoralization, pravity, depravity, pollution, hardness of heart, brutality, corruption, knavery, profligacy, flagrancy, atrocity, cannibalism, lesbianism, Sadism, infirmity, weakness, weakness of the flesh, frailty, imperfection, error, weak side, foible, failing, failure, crying sin, besetting sin, defect, deficiency, cloven foot, lowest dregs of vice, sink of iniquity, Alsatian den, gusto picaresco, fault, crime, criminality, sinner, brothel, gambling house, joint, opium den, shooting gallery, crack house, vicious, sinful, sinning, wicked, iniquitous, immoral, unrighteous, wrong, criminal, naughty, incorrect, unduteous, undutiful, unprincipled, lawless, disorderly, contra bonos mores, indecorous, unseemly, improper, dissolute, profligate, scampish, unworthy, worthless, desertless, disgraceful, recreant, reprehensible, blameworthy, uncommendable, discreditable, disreputable, Sadistic, base, sinister, scurvy, foul, gross, vile, black, grave, facinorous, felonious, nefarious, shameful, scandalous, infamous, villainous, of a deep dye, heinous, flagrant, flagitious, atrocious, incarnate, accursed, Mephistophelian, satanic, diabolic, hellish, infernal, stygian, fiendlike, hell-born, demoniacal, devilish, fiendish, miscreated, misbegotten, demoralized, corrupt, depraved, evil-minded, evil-disposed, ill-conditioned, malevolent, heartless, graceless, shameless, virtueless, abandoned, lost to virtue, unconscionable, sunk in iniquity, lost in iniquity, steeped in iniquity, incorrigible, irreclaimable, obdurate, reprobate, past praying for, culpable, reprehensible, unjustifiable, indefensible, inexcusable, inexpiable, unpardonable, irremissible, weak, frail, lax, infirm, imperfect, indiscrete, demoralizing, degrading, wrong, sinfully, without excuse, Int, O tempora!, O mores!, alitur vitium vivitque tegendo, genus est mortis male vivere, mala mens malus animus, nemo repente fuit turpissimus, the trail of the serpent is over them all, to sanction vice and hunt decorum down.