Jafar Umar Thalib ja·fa·ru·marthalib uncommon noun 1. Indonesian terrorist and Islamic militant who commands the Laskar Jihad; uses violence to achieve political ends (1965-2000) SynonymsJaffarJafarJaffar Umar ThalibJafar Umar Thalib Related words Broader terms terrorist WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.