单词	unheard-of
释义	unheard-of adjective un·​heard-of ˌən-ˈhərd-ˌəv  -ˌäv : previously unknown especially : unprecedented moving at unheard-of speeds Synonyms fresh new novel original strange unaccustomed unfamiliar unknown unprecedented See all Synonyms & Antonyms Word History First Known Use 1592, in the meaning defined above Kids Definition unheard-of adjective un·​heard-of ˌən-ˈhərd-ˌəv, -ˌäv : not known before an unheard-of invention unheard-of adjective as in unprecedented not known or experienced before houses selling at unheard-of prices Synonyms & Similar Words Relevance unprecedented novel unfamiliar strange new original fresh unknown unaccustomed unique innovative pioneering untried unconventional nontraditional unused trailblazing pathbreaking unworn Antonyms & Near Antonyms familiar hackneyed old conventional traditional time-honored established tired warmed-over imitative derivative tried tried-and-true See More
随便看	subacutely subadar subadars subadolescent subadolescents subadult subadults subaerate subaerial subaerially subaesthetic subage subagencies subagency subagent subagents subah subahdar subahdaries subahdars subahdary subahs subahship subahships Subakhmimic

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。