What is the opposite of unhazardous?

Need antonyms for unhazardous? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts Harmful, often in a subtle or unexpected way Capable of causing harm, injury or death due to the presence of poison Dangerous or involving risks Requiring or involving physical effort Adjective ▲ Harmful, often in a subtle or unexpected way deleterious adverse detrimental damaging harmful dangerous injurious pernicious baleful baneful hurtful bad inimical noxious prejudicious ruinous destructive nocuous prejudicial unfavorableUS unfavourableUK disadvantageous ill negative nocent destroying ruining undesirable unfortunate evil wicked mischievous unhealthy deadly unwholesome calamitous disastrous hazardous malignant malign corrupting lethal poisonous maleficent toxic unsafe risky cancerous fatal wounding counterproductive malefic crippling sinister malevolent malicious dire environmentally unfriendly corroding disturbing dicey threatening perilous parlous precarious painful subversive murderous cataclysmic incendiary catastrophic undermining lethiferous pestilential menacing sinful internecine pestiferous harassing corrosive wrackful suicidal annihilative devastating slaughterous critical virulent venomous wreckful eradicative extirpative insalubrious noisome more ❯ “I see the deleterious consequences of this mistaken belief in many of my patients.” Adjective ▲ Capable of causing harm, injury or death due to the presence of poison toxic poisonous venomous noxious pestilential toxiferous virulent baneful deadly destructive harmful lethal pestiferous dangerous envenomed fatal infective injurious malignant mortal pernicious poison poisoned unsafe contaminated corrupt peccant septic toxicant mephitic viperous death-dealing environmentally unfriendly calamitous ruinous devastating catastrophic cataclysmic disastrous hurtful damaging detrimental deleterious violent wounding cataclysmal devastative annihilatory fierce disadvantageous fateful baleful ravaging savage brutal unfortunate damning crippling maleficent dire lethiferous consumptive internecine cancerous wrackful suicidal annihilative evil slaughterous erosive wreckful eradicative extirpative noisome cutthroat fell more ❯ “Made from non-renewable oil resources, they are toxic, do not biodegrade, and are harmful to animals.” Adjective ▲ Dangerous or involving risks awkward dangerous perilous precarious risky treacherous vulnerable delicate hazardous parlous rocky serious chancy dicey grave grievous iffy sticky thorny threatening tricky unsafe unsound unstable dodgy gnarly hairy insecure shaky unpredictable taxing high-risk touch-and-go fraught with danger reckless uncertain daredevil death-defying exposed breakneck dangersome Russian roulette alarming tottery hot unchancy venturesome daring compromisable playing with fire ugly more ❯ “After breaking bad, Walter White would find himself in an awkward situation because his brother-in-law was the district attorney.” Adjective ▲ Requiring or involving physical effort energetic strenuous gruelingUS vigorous arduous difficult formidable gruellingUK laborious punishing rigorous taxing demanding exhausting fatiguing hard heavy rugged stiff tiring toilsome tough backbreaking challenging exacting knackering severe toilful operose energy-consuming high-energy “My personal trainer has come up with an energetic exercise routine.” Find more words! 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Sentences with the word unhazardous Words that rhyme with unhazardous Use our Antonym Finder Nearby Words unhazardousness unhazy unhealed unhealth unhealthful unhealthfully unhatched unhasty unharnessing unharnesses unharnessed unharness 11-letter Words Starting With u un unh unha unhaz unhaza unhazar unhazard unhazardo unhazardou