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toxic - 16 thesaurus results
| Main Entry: | toxic |
| Part of Speech: | adjective |
| Definition: | poisonous |
| Synonyms: | baneful, deadly, harmful, lethal, mephitic, noxious, pernicious, poison, venomous, virulent, pestilential, septic, toxicant |
| Antonyms: | harmless, nonpoisonous |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009 by the Philip Lief Group.
Cite This Source
| Main Entry: | harmful |
| Part of Speech: | adjective |
| Definition: | injurious, hurtful |
| Synonyms: | adverse, bad, baleful, baneful, calamitous, consumptive, corrupting, damaging, deleterious, destructive, detrimental, dire, disadvantageous, disastrous, evil, incendiary, inimical, internecine, malicious, malignant, menacing, mischievous, murderous, nocuous, noxious, painful, pernicious, pestiferous, risky, ruinous, sinful, sinister, subversive, toxic, unhealthy, unsafe, unwholesome, virulent, cataclysmic, catastrophic, corroding, crippling, harassing, malefic, pestilential, undermining |
| Main Entry: | infectious |
| Part of Speech: | adjective |
| Definition: | catching, spreading |
| Synonyms: | communicable, contagious, corrupting, diseased, epidemic, mephitic, noxious, pestilent, toxic, transferable, virulent, contaminating, defiling, infective, miasmic, pestilential, poisoning, polluting, transmittable, vitiating |
| Notes: | diseases spread by contact are contagious and those spread by air or water are infectious |
| Antonyms: | antiseptic, harmless, germless, non-infectious, uncommunicable, uncontagious |
| Main Entry: | noxious |
| Part of Speech: | adjective |
| Definition: | deadly, injurious |
| Synonyms: | baneful, corrupting, dangerous, deleterious, destructive, detrimental, fetid, foul, harmful, hurtful, noisome, pernicious, pestiferous, pestilent, poisonous, putrid, sickly, spoiled, stinking, toxic, unhealthful, unhealthy, unwholesome, venomous, virulent, insalubrious, insalutary, pestilential |
| Antonyms: | curing, good, healthy, helpful, hygienic, pure, sterile, wholesome |
| Main Entry: | pernicious |
| Part of Speech: | adjective |
| Definition: | bad, hurtful |
| Synonyms: | baleful, damaging, dangerous, deadly, deleterious, destructive, detrimental, devastating, evil, fatal, harmful, iniquitous, injurious, killing, lethal, malevolent, malicious, malign, malignant, mortal, nefarious, noisome, noxious, offensive, pestiferous, pestilent, poisonous, prejudicial, ruinous, sinister, toxic, venomous, virulent, wicked, maleficent, miasmatic, miasmic, pestilential |
| Antonyms: | helpful, innocuous, kind, lovable, loving |
| Main Entry: | poison/poisonous |
| Part of Speech: | adjective |
| Definition: | harmful |
| Synonyms: | bad, baleful, baneful, corrupt, dangerous, deadly, deleterious, destructive, detrimental, evil, fatal, hurtful, lethal, malicious, malignant, mephitic, morbid, mortal, nocuous, noisome, noxious, peccant, pernicious, pestiferous, toxic, venomous, vicious, viperous, virulent, corruptive, infective, miasmatic, pestilential, septic, toxicant, toxiferous |
| Antonyms: | assisting, curing, healing, helpful, aiding, antidotal |
| Main Entry: | venomous |
| Part of Speech: | adjective |
| Definition: | poisonous; hateful |
| Synonyms: | antagonistic, baleful, baneful, catty*, deadly, destructive, dirty, evil, hostile, lethal, malevolent, malicious, malign, malignant, mean, mephitic, noxious, ornery*, savage, spiteful, toxic, vicious, vindictive, viperous, virulent, waspish, accidentally on purpose, cussed, malefic, rancorous, toxicant, viperish |
| Antonyms: | kind, praising, unpoisonous |
* = informal/non-formal usage
| Main Entry: | indigestible |
| Part of Speech: | adjective |
| Definition: | inedible |
| Synonyms: | disagreeing, green, hard, malodorous, moldy, poisonous, putrid, raw, rotten, rough, tasteless, toxic, unhealthy, unpalatable, unripe, undercooked, uneatable |
| Main Entry: | poisonous |
| Part of Speech: | adjective |
| Definition: | harmful |
| Synonyms: | bad, baleful, baneful, corrupt, dangerous, deadly, deleterious, destructive, detrimental, evil, fatal, hurtful, lethal, malicious, malignant, mephitic, morbid, mortal, nocuous, noisome, noxious, peccant, pernicious, pestiferous, poison, toxic, venomous, vicious, viperous, virulent, corruptive, infective, miasmatic, pestilential, septic, toxicant, toxiferous |
| Antonyms: | benevolent, harmless, non-toxic |
| Main Entry: | unhealthful |
| Part of Speech: | adjective |
| Definition: | unwholesome |
| Synonyms: | dangerous, detrimental, harmful, noxious, toxic, unhealthy, unsanitary, contaminated, insalubrious, unsalutary |
| Antonyms: | healthful, healthy, salubrious, salutary, wholesome |
| Main Entry: | unwholesome |
| Part of Speech: | adjective |
| Definition: | unhealthful |
| Synonyms: | dangerous, deleterious, destructive, harmful, lethal, noxious, pernicious, poisonous, rotten, spoiled, toxic, unhealthy, venomous, virulent, contaminated, insalubrious, septic, unnutritious |
| Antonyms: | healthful, nutritious, wholesome |
| Main Entry: | deadly |
| Part of Speech: | adjective |
| Definition: | causing end of life |
| Synonyms: | baleful, baneful, bloodthirsty, bloody, cannibalistic, cruel, dangerous, deathly, deleterious, destroying, destructive, fatal, grim, harmful, homicidal, injurious, internecine, killing, lethal, malignant, mortal, murderous, noxious, pernicious, pestiferous, pestilent, poisonous, ruthless, savage, suicidal, toxic, unrelenting, venomous, violent, virulent, carcinogenic, death-dealing, mortiferous, pestilential, slaying |
| Antonyms: | harmless, healthful, healthy, invigorating, wholesome, animating, energizing |
| Main Entry: | destructive |
| Part of Speech: | adjective |
| Definition: | injurious, devastating |
| Synonyms: | baleful, baneful, calamitous, cancerous, consumptive, cutthroat, damaging, deadly, deleterious, detrimental, dire, disastrous, evil, fatal, fell, harmful, hurtful, internecine, lethal, mortal, noisome, noxious, pernicious, pestiferous, ruinous, suicidal, toxic, venomous, annihilative, cataclysmic, catastrophic, eradicative, extirpative, lethiferous, pestilential, slaughterous, wrackful, wreckful |
| Antonyms: | assisting, building, creative, helpful, productive, aiding |
| Main Entry: | virulent |
| Part of Speech: | adjective |
| Definition: | poisonous, lethal |
| Synonyms: | baneful, deadly, destructive, fatal, harmful, injurious, malign, malignant, mephitic, pernicious, poison, toxic, unhealthy, unwholesome, venomous, infective, septic, toxicant |
| Antonyms: | harmless, healthy, nonpoisonous |
| Main Entry: | poisoned |
| Part of Speech: | adjective3 |
| Definition: | polluted with poison |
| Synonyms: | corrupted, deadly, defiled, impure, malignant, noxious, poisonous, tainted, toxic, venomous, virulent, contaminated |
| Antonyms: | fresh, pure, untainted |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2009 by the Philip Lief Group.
Cite This Source
Copyright © 2009 by the Philip Lief Group.
Cite This Source
| Main Entry: | sickness |
| Part of Speech: | noun |
Related
Adjectives: |
taking, afflicted with illness, ailing, anorectic, azotic, bedridden, broken, carious, catching, chlorotic, clonic, confined, congenital, conspurcated, contagious, contaminated, crample, cresty, crippled, cronk, cryptogenic, deadly, decayed, decrepit, deleterious, diseased, donsie, drooping, dysepulotic, dyspeptic, emphysematous, emunctory, endemic, envenomed, epidemic, epizootic, febrifacient, flagging, flatulent, furuncular, gasping, halting, healthless, helminthous, iatrogenic, ill, ill of, in a bad way, in danger, in declining health, in hospital, incurable, indigestible, indisposed, infectious, infirm, innutritious, insalubrious, insanable, invaletudinary, invalided, laid up, lame, lazarous, lectual, leprous, loimic, luetic, maliferous, mangy, mephitic, morbid, morbiferous, morbific, morbilious, moribund, morose, narcotic, nauseous, neuromimetic, noisome, nosocomial, nosopoetic, noxious, on the sick list, out of health, out of sorts, palsied, paralytic, peccant, peracute, pestiferous, pestilent, pestilential, phanerogenic, phthistic, poisoned, poisonous, poorly, prodromal, prosodemic, prostrate, purulent, qualmish, rabid, rotten, rotten at the core, rotten to the core, sanable, scorbutic, seasick, seedy, seized with, septic, sick, sickly, spavin, squeamish, stuporous, tabid, tainted, taken ill, tenesmic, theriodic, touched in the wind, toxic, tussive, ulcerated, unbraced, uncongenial, ungenial, unhealthy, unsound, unwell, unwholesome, valetudinary, variolate, venomous, virulent, vitiated, weakened, weakly, withered, zymotic
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