baneful adj

1 exceedingly harmful [syn: deadly, pernicious, pestilent]

2 deadly or sinister; "the Florida eagles have a fierce baleful look" [syn: baleful]

English

Adjective

1. Exceedingly harmful; causing harm, death, ruin.
2. Deadly or sinister.
3. Portending disaster.
4. Poisonous.

apocalyptic, appalling, atrocious, awful, bad, baleful, beastly, black, bodeful, boding, brutal, calamitous, cataclysmal, cataclysmic, catastrophic, consuming, consumptive, corroding, corrosive, corrupting, corruptive, counterproductive, damaging, dark, deadly, death-bringing, deathful, deathly, deleterious, demolishing, demolitionary, depredatory, desolating, destroying, destructive, detrimental, devastating, dire, direful, disadvantageous, disastrous, disserviceable, distressing, doomful, dreadful, dreary, evil, evil-starred, fatal, fateful, feral, foreboding, fratricidal, gloomy, grim, harmful, hideous, horrendous, horrible, horrid, horrific, horrifying, hurtful, ill, ill-boding, ill-fated, ill-omened, ill-starred, inauspicious, injurious, insalubrious, internecine, killing, lethal, lowering, malefic, malevolent, malign, malignant, menacing, mischievous, mortal, nihilist, nihilistic, noisome, noxious, of evil portent, ominous, pernicious, pestiferous, pestilent, pestilential, poisonous, portending, portentous, prejudicial, ravaging, rotten, ruining, ruinous, savage, scatheful, self-destructive, shocking, sinister, somber, subversionary, subversive, suicidal, terrible, threatening, toxic, tragic, unfavorable, unfortunate, unhealthy, unlucky, unpromising, unpropitious, unspeakable, untoward, unwholesome, vandalic, vandalish, vandalistic, venenate, veneniferous, venenous, venomous, vicious, virulent, wasteful, wasting, withering