undesirable英语

undesirable英 [ˌʌndɪˈzaɪərəbl] 美 [ˌʌndɪˈzaɪrəbəl] adj.不良的;不合需要的;不受欢迎的，讨厌的;不方便的n.不受欢迎的人;不良分子

不良 [词典] bad; undesirable; unhealthy; harmful; badness; [例句]也会对大脑产生不良影响，如焦虑和神经质的行为。There are also unpleasant brain effects such as anxiety and neurotic behaviour.

good -excellent/marvellous,bad-terrible the girl is so undesirable[讨厌的].=the girl is such a nuisance.

不受欢迎的人 [词典] [法] undesirable; [例句]政府已经宣布法国大使为不受欢迎的人，勒令其离境。The government has declared the French ambassador persona non grata and ordered him to leave the country.