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单词	ultrahazardous
释义	ultrahazardous adjective ul·​tra·​haz·​ard·​ous ˌəl-trə-ˈha-zər-dəs  : involving an extremely large risk (as of loss or harm) : extremely or extraordinarily hazardous ultrahazardous waste Under American law, in all likelihood, the operation of this plant to manufacture methyl isocyanate would be classified as an ultrahazardous activity … William J. Curran Word History First Known Use 1886, in the meaning defined above Legal Definition ultrahazardous adjective ul·​tra·​haz·​ard·​ous ˌəl-trə-ˈha-zər-dəs : being of such extreme danger or risk of harm that strict liability will be imposed ultrahazardous adjective as in hazardous Synonyms & Similar Words Relevance hazardous harmful dangerous detrimental pernicious injurious adverse deleterious malignant evil unsafe risky noxious inimical perilous destructive lethal threatening serious hurtful unhealthy fatal deadly ill menacing jeopardizing baneful grievous grave killer pestilent murderous bad precarious uncertain treacherous baleful mortal dire fateful fell unpleasant deathly venturesome insecure parlous nasty dicey sickening random distressing wicked haphazard ugly chance Antonyms & Near Antonyms nonhazardous harmless safe innocent innocuous beneficial nonthreatening unthreatening advantageous good ultrasafe See More
随便看	heterandry Heterangium Heteranthera heterantherae heterantheras heteratomic heterauxesis heterauxetic heteraxial heterecious heterism heterization hetero hetero- heteroatom heteroatomic heteroatoms heteroautotroph heteroautotrophic heteroauxins Heterobasidiae Heterobasidiomycetes heterobasidiomyceteses heterobasidiomycetesses Heterobasidiomycetidae

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。