Extremely poisonous or injurious; producing venom:
— Venomous snakes.

synonyms: deadly, virulent.

Roget 895: discourteous, uncourteous^†; uncourtly^†; ill-bred, ill-mannered, ill-behaved, ill-conditioned; unbred; unmannerly, unmannered; impolite, unpolite^†; unpolished, uncivilized, ungenteel; ungentleman-like, ungentlemanly; unladylike; blackguard; vulgar etc. 851; dedecorous^†; foul-mouthed foul-spoken; abusive.    uncivil, ungracious, unceremonious; cool; pert, forward, obtrusive, impudent, rude, saucy, precocious.    repulsive; uncomplaisant^†, unaccommodating, unneighborly, ungallant; inaffable^†; ungentle, ungainly; rough, rugged, bluff, blunt, gruff; churlish, boorish, bearish; brutal, brusque; stern, harsh, austere; cavalier.    taint, sour, crabbed, sharp, short, trenchant, sarcastic, biting, doggish, caustic, virulent, bitter, acrimonious, venomous, contumelious; snarling etc. v.; surly, surly as a bear; perverse; grim, sullen etc. 901.1; peevish etc. (irascible) 901.    untactful, impolitic, undiplomatic; artless etc. 703; ... show more

Roget 907: malevolent, unbenevolent; unbenign; ill-disposed, ill-intentioned, ill-natured, ill-conditioned, ill-contrived; evil-minded, evil-disposed; black-browed^†.    malicious; malign, malignant; rancorous; despiteful, spiteful; mordacious, caustic, bitter, envenomed, acrimonious, virulent; unamiable, uncharitable; maleficent, venomous, grinding, galling.    harsh, disobliging; unkind, unfriendly, ungracious; inofficious^†; invidious; uncandid; churlish etc. (discourteous) 895; surly, sullen etc. 901.1. cold, cold-blooded, cold-hearted; black-hearted, hard-hearted, flint-hearted, marble-hearted, stony-hearted; hard of heart, unnatural; ruthless etc. (unmerciful) 914.1; relentless etc. (revengeful) 919.    cruel; brutal, brutish; savage, savage as a bear, savage as a tiger; ferine^†, ferocious; inhuman; barbarous, barbaric, semibarbaric, fell, untamed, tameless, truculent, incendiary; bloodthirsty etc. (murderous) 361; atrocious; bloodyminded^†.    fiendish, fiendlike^†; demoniacal; diabolic, diabolical; devilish, infernal, hellish, Satanic; Tartaran.    ... show more

Roget 657: insalubrious; unhealthy, unwholesome; noxious, noisome; morbific^†, morbiferous^†; mephitic, septic, azotic^†, deleterious; pestilent, pestiferous, pestilential; virulent, venomous, envenomed; poisonous, toxic, toxiferous^†, teratogenic; narcotic.    contagious, infectious, catching, taking, epidemic, zymotic^†; epizootic.    innutritious^†, indigestible, ungenial; uncongenial etc. (disagreeing) 24.    deadly etc. (killing) 361.    ... show more

Roget 649: 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 etc. (malevolent) 907.    corrupting etc. (corrupt) etc. 659; virulent, venomous, envenomed, corrosive; poisonous etc. (morbific) 657^†; deadly etc. (killing) 361; destructive etc. (destroying) 162; inauspicious etc. 859.    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 etc. (paltry) 643; injured &c.; deteriorated etc. 659; unsatisfactory, exceptionable indifferent; below par etc. (imperfect) 651; illcontrived, ill-conditioned; wretched, sad, grievous, deplorable, lamentable; pitiful, pitiable, woeful etc. (painful) 830.    evil, wrong; depraved etc. 945; shocking; reprehensible etc. (disapprove) 932.    hateful, hateful as a toad; abominable, detestable, execrable, cursed, accursed, confounded; damned, damnable; infernal; diabolic etc. (malevolent) 907.    unadvisable etc. (inexpedient) 647; unprofitable etc. (useless) 645; incompetent etc. (unskillful) 699; irremediable etc. (hopeless) 859.    ... show more

Polish: jadowity

Marked by deep ill will; deliberately harmful:
— Venomous criticism.

synonyms: poisonous, vicious.

Polish: jadowity