- sinister
- adj1. ominous, inauspicious, unpropi-tious, portentous, ill-omened, sinistrous, foreboding, fateful, direful; menacing, minatory, minacious, threatening; dangerous, perilous, hazardous; treacherous, perfidious, untrustworthy.2. bad, base, vile, nefarious, low, low-down, foul, vicious, without any redeeming qualities; mean, underhanded, sneaky, furtive, covert, crafty, sly, insidious; contemptible, abominable, odious, despicable, reprehensible, damnable, accursed; evil, wicked, diabolic, fiendish, devilish, satanic; baleful, malicious, malign, maleficent, malefic, harmful, injurious, pernicious, destructive; immoral, sinful, iniquitous, depraved, degraded, corrupt; cruel, fell, lacking the milk of human kindness, heinous, villainous, infamous, scoundrelly, unscrupulous.3. unfortunate, ill-starred, unlucky, hapless, untoward, unfavorable; disastrous, ruinous, calamitous; woeful, lamentable, unhappy, sad, terrible, deplorable, regrettable.4. left-handed, sinistral, Scot. car, on the left, left, port, Naut. larboard.
A Note on the Style of the synonym finder. 2014.