A derivative is something which has been developed or obtained from something else.
例句
...a poppy-seed derivative similar to heroin...类似海洛因的罂粟籽制剂This isn't an entirely new car, but a new derivative of the Citroen XM.这不是一款全新的车，而是雪铁龙XM系列的派生车型。
ADJ-GRADED
模仿他人的;缺乏创意的
If you say that something is derivative, you are criticizing it because it is not new or original but has been developed from something else.
例句
...their dull, derivative debut album...他们沉闷乏味、缺乏创意的首张专辑A lot of what you see in stand-up comedy today is very derivative.如今人们看到的单人喜剧表演好多内容都是沿袭前人。