| Main Entry: | pestilential |
| Part of Speech: | adjective |
| Definition: | virulent |
Synonyms: |
baneful, deadly, destructive, fatal, harmful, infective, injurious, malign, malignant, mephitic, noxious, pernicious, pestilent, poison, septic, toxic, toxicant, unhealthy, unwholesome, venomous |
| Main Entry: | baneful |
| Part of Speech: | adjective |
| Definition: | ruinous, injurious |
Synonyms: |
baleful, calamitous, deadly, deleterious, destructive, disastrous, evil, fatal, harmful, hurtful, malefic, noxious, pernicious, pestilent, pestilential, poisonous, venomous, wicked |
| Notes: | something is baleful that intends or portends harm or injury; something is baneful that produces harm or injury - thus, a glance may be baleful, an herb or poison baneful |
Antonyms: |
advantageous, beneficial, beneficient, fortunate, helpful, lucky |
| Main Entry: | catching |
| Part of Speech: | adjective |
| Definition: | contagious (disease) |
Synonyms: |
communicable, dangerous, endemic, epidemic, epizootic, infectious, infective, miasmatic, pandemic, pestiferous, pestilential, taking, transferable, transmittable |
Antonyms: |
uncontagious |
| Main Entry: | contagious |
| Part of Speech: | adjective |
| Definition: | communicable |
Synonyms: |
catching, deadly, endemic, epidemic, epizootic, impartible, infectious, inoculable, pestiferous, pestilential, poisonous, spreading, taking, transmissible, transmittable |
Antonyms: |
noncommunicable |
| Main Entry: | cursed |
| Part of Speech: | adjective |
| Definition: | detestable, hateful |
Synonyms: |
abominable, accursed, atrocious, damnable, devilish, disgusting, execrable, fiendish, heinous, infamous, infernal, loathsome, odious, pernicious, pestilential, vile |
Antonyms: |
great, kind, nice, sweet |
| Main Entry: | deadly |
| Part of Speech: | adjective |
| Definition: | causing end of life |
Synonyms: |
baleful, baneful, bloodthirsty, bloody, cannibalistic, carcinogenic, cruel, dangerous, death-dealing, deathly, deleterious, destroying, destructive, fatal, grim, harmful, homicidal, injurious, internecine, killing, lethal, malignant, mortal, mortiferous, murderous, noxious, pernicious, pestiferous, pestilent, pestilential, poisonous, ruthless, savage, slaying, suicidal, toxic, unrelenting, venomous, violent, virulent |
Antonyms: |
animating, energizing, harmless, healthful, healthy, invigorating, wholesome |
| Main Entry: | deathly |
| Part of Speech: | adjective |
| Definition: | fatal |
Synonyms: |
deadly, extreme, intense, lethal, mortal, mortiferous, noxious, pestilent, pestilential, terrible |
Antonyms: |
benign, harmless, healthful, healthy, life-giving, strengthening |
| Main Entry: | destructive |
| Part of Speech: | adjective |
| Definition: | injurious, devastating |
Synonyms: |
annihilative, baleful, baneful, calamitous, cancerous, cataclysmic, catastrophic, consumptive, cutthroat, damaging, deadly, deleterious, detrimental, dire, disastrous, eradicative, evil, extirpative, fatal, fell, harmful, hurtful, internecine, lethal, lethiferous, mortal, noisome, noxious, pernicious, pestiferous, pestilential, ruinous, slaughterous, suicidal, toxic, venomous, wrackful, wreckful |
Antonyms: |
aiding, assisting, building, creative, helpful, productive |
| Main Entry: | fatal |
| Part of Speech: | adjective |
| Definition: | deadly, lethal |
Synonyms: |
baleful, baneful, calamitous, cataclysmic, catastrophic, deathly, destructive, disastrous, fateful, final, ill-fated, ill-starred, incurable, inevitable, killing, malefic, malignant, mortal, mortiferous, noxious, pernicious, pestilent, pestilential, poisonous, ruinous, terminal, virulent |
Antonyms: |
healthful, life-giving, nourishing, vital, wholesome |
| Main Entry: | harmful |
| Part of Speech: | adjective |
| Definition: | injurious, hurtful |
Synonyms: |
adverse, bad, baleful, baneful, calamitous, cataclysmic, catastrophic, consumptive, corroding, corrupting, crippling, damaging, deleterious, destructive, detrimental, dire, disadvantageous, disastrous, evil, harassing, incendiary, inimical, internecine, malefic, malicious, malignant, menacing, mischievous, murderous, nocuous, noxious, painful, pernicious, pestiferous, pestilential, risky, ruinous, sinful, sinister, subversive, toxic, undermining, unhealthy, unsafe, unwholesome, virulent |