The definition of impel is to force something to happen or to cause someone to do something.(verb)
When you cause someone to feel very angry, this is an example of a situation where you impel angry feelings.
See impel in Webster's New World College Dictionary
See impel in American Heritage Dictionary 4
transitive verb im·pelled, im·pel·ling, im·pels
Origin: Middle English impellen
Origin: , from Latin impellere
Origin: : in-, against; see in-2
Origin: + pellere, to drive; see pel-5 in Indo-European roots.
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