that does not have permission or approval from somebody in authority 未经正式批准的;非官方的;非正式的 an unofficial agreement/strike 未经批准的协议/罢工 Unofficial estimates put the figure at over two million. 非官方的估计数字为 200 万以上。
Extra ExamplesIt's one of numerous unofficial Harry Potter websites. 这是众多非官方哈利波特网站之一。 The result for the athlete was an unofficial world best of 2 minutes 27 seconds. 该运动员的比赛结果是非官方的世界最好成绩2分27秒。 Unofficial reports indicated that up to 10 million people had been made homeless. 非官方报告显示,多达1000万人无家可归。 Unofficial sources report that four people were killed in the accident 非官方消息称有四人在事故中丧生
that is not part of somebody’s official business 非公事的;私事的;私人的 opposite official