[1] : The Collaborative International Dictionary of English v.0.48

impel \impel"\, v. t. imp.  p. p. impelled; p. pr.  vb. n.
   impelling. l. impellere; pref. im- in + pellere, pulsum,
   to drive. see pulse a beat, and cf. impulse.
   to drive or urge forward or on; to press on; to incite to
   action or motion in any way.
   1913 webster

         the surge impelled me on a craggy coast. --pope.

   syn: to instigate; incite; induce; influence; force; drive;
        urge; actuate; move.
        1913 webster
see also:
impelled impelling pulse impulse 

[2] : The Collaborative International Dictionary of English v.0.48

impelled \impelled\ adj.
   motivated by an irresistable compulsion.

   syn: driven.
        wordnet 1.5 +pjc

[3] : WordNet (r) 2.0

impelled
     see impel
see also:
impel 

[4] : WordNet (r) 2.0

impelled
     adj : urged or forced to action through moral pressure; "felt
           impelled to take a stand against the issue" syn: driven
see also:
driven 

[5] : WordNet (r) 2.0

impel
     v 1: urge or force a person to an action; constrain or motivate
          syn: force
     2: cause to move forward with force; "steam propels this ship"
        syn: propel
     also: impelling, impelled
see also:
force propel impelling impelled 

Impelled >> I Words
Impelled, definition of term: Impelled
impelled_pag1.html