1590s, "not peaceful, not firmly established," from unsettle (v.) or else from un- (1) "not" + past participle of settle (v.). Meaning "not occupied by settlers" is attested from 1724.
权威例句
1. I'm a bit unsettled tonight. This war thing's upsetting me.
我今晚有点心神不定,这场争斗让我不安。
2. Despite the unsettled weather, we had a marvellous weekend.
尽管天气一会儿好一会儿差,我们仍然度过了一个美好的周末。
3. The junk market has been unsettled for the past seven months.
过去7个月中废旧货市场一直起伏不定。
4. To tell the truth, I'm a bit unsettled tonight.
实话告诉你,我今晚有点儿心神不宁。
5. They were in the process of resolving all the unsettled issues.