/ɪmˈpel ||; ɪmˈpɛl/verb [T] (impelling;impelled)impel sb (to do sth) if an idea or a feeling impels you to do sth, you feel as if you are forced to do it 驱策；逼使: He felt impelled to investigate further. 他感到不得不作进一步调查。There are various reasons that impel me to that conclusion. 有各种原因驱使我得出那个结论。