| 单词 | unpremeditated |
| 例句 | unpremeditated adjective •she later regretted her unpremeditated response:unplanned, spontaneous, unprepared, impromptu, spur-of-the-moment, unrehearsed, ad lib, improvised, extemporaneous | informal off-the-cuff, off the top of one's head. ANT planned. |
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