use·less /ˈjuːslɪs/ a. 1. 无用的;无价值的 a useless old typewriter 一架无用的旧打字机 The contents of the box were rendered useless by damp. 箱内的东西由于受潮变得毫无价值了。 2. 无益的;无效的,不能收到效果的 Protest is useless. 抗议不会有效果。 I realized it was useless to pursue the subject. 我认识到继续从事这一课题是没有意义的。 3. 〈口〉差劲的,无能的,愚笨的 You're useless! You've done it wrong again! 你真窝囊,又做错啦! He's useless at maths. 他的数学非常差劲。