"impelled" in the verb sense
1. impel, force
urge or force (a person) to an action constrain or motivate
2. propel, impel
cause to move forward with force
"Steam propels this ship"
"impelled" in the adjective sense
1. driven, impelled
urged or forced to action through moral pressure
"felt impelled to take a stand against the issue"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License