| Main Entry: | pestiferous |
| Part of Speech: | adjective |
| Definition: | annoying |
Synonyms: |
bothersome, contagious, diseased, harmful, infectious, noisome, noxious, pernicious, pestilential, toxic, unhealthy, virulent |
| 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 |
| Notes: | diseases spread by contact are contagious and those spread by air or water are infectious |
Antonyms: |
noncommunicable |
| 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: | 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: | 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 |
| Main Entry: | hateful |
| Part of Speech: | adjective |
| Definition: | nasty, obnoxious |
Synonyms: |
abhorrent, abominable, accursed, awful, bitter, blasted, catty, confounded, cursed, cussed, damnable, damned, despicable, despiteful, detestable, disgusting, evil, execrable, forbidding, foul, gross, heinous, horrid, infamous, invidious, loathsome, malevolent, malign, mean, odious, offensive, ornery*, pesky, pestiferous, repellent, repugnant, repulsive, resentful, revolting, shuddersome, spiteful, uncool, undesirable, vicious, vile |
Antonyms: |
friendly, kind, likable, lovable, nice, pleasant, polite |
| Main Entry: | inconvenient |
| Part of Speech: | adjective |
| Definition: | bothersome, troublesome |
Synonyms: |
annoying, awkward, cumbersome, detrimental, difficult, disadvantageous, discommoding, discommodious, disturbing, embarrassing, incommodious, inexpedient, inopportune, pestiferous, prejudicial, remote, tiresome, troublesome, unhandy, unmanageable, unseasonable, unsuitable, untimely, unwieldy, vexatious |
Antonyms: |
aiding, beneficial, convenient, helpful |
| Main Entry: | loathsome |
| Part of Speech: | adjective |
| Definition: | hateful |
Synonyms: |
abhorrent, abominable, beastly, bitchy, creepy, deplorable, detestable, disgusting, execrable, gross, hideous, horrible, invidious, lousy, nasty, nauseating, obnoxious, odious, offensive, pesky, pestiferous, repellent, repugnant, repulsive, revolting, sleazy*, slimy*, uncool, vile |
Antonyms: |
liking, lovable, respectful |
| Main Entry: | noisome |
| Part of Speech: | adjective |
| Definition: | immoral, bad, offensive |
Synonyms: |
baneful, dangerous, deadly, deleterious, disgusting, fetid, foul, harmful, horrid, hurtful, injurious, insalubrious, insalutary, loathsome, malodorous, mephitic, mischievous, nauseating, noxious, pernicious, pestiferous, pestilential, poisonous, putrid, rank, reeking, repulsive, sickening, sickly, smelly, stinking, unhealthful, unhealthy, unwholesome, vile, yucky |
Antonyms: |
good, just, moral, upright |