- deadly
- adj1. fatal, mortal, lethal, mortiferous, deathful, Archaic. lethiferous; pernicious, dangerous, hazardous, deleterious, detrimental; harmful, injurious, nocuous, hurtful, nocent, baleful, noisome; destructive, ruinous, calamitous, disastrous; pestilential, pestiferous, noxious, malicious, malign, malignant, menacing; venomous, virulent, toxic, morbific; fell, baneful, mephitic, viperous, poisonous, Archaic. venenose; infective, infectious, pestilent, contaminative, contagious, leprous, septic.2. murderous, homicidal, slaughterous, bloodthirsty, sanguinary, internecine; brutal, violent, vicious, inhuman, barbarous, barbaric, hellish; ferocious, ruthless, savage, truculent, fierce, feral, ferine; terrible, harsh, severe, grim, dreadful, dire; unrelenting, relentless, remorseless, implacable, inexorable, unappeasable; pitiless, merciless, heartless, cruel, coldblooded, cold-hearted, hard-hearted, marble-hearted, stony-hearted.3. deathlike, deathly, pallid, wan, pale; livid, sallow, ashen, ghostly, white; cadaverous, corpse-like, skeletal, emaciated; gaunt, haggard, hollow-eyed.4. excessive, inordinate, great, immoderate; overmuch, needless, undue, unnecessary, superabundant.5. true, unerring, accurate, precise, correct, unfailing, on target, on the mark, Inf. in the bull's-eye.6. dull, boring, tiresome, humdrum, tedious, uninteresting; fatiguing, wearisome, monotonous, Fr. en-nuyant; lackluster, dry, jejune; heavy, ponderous, irksome.
A Note on the Style of the synonym finder. 2014.