Indian chieftain in·dianc·hief·tain uncommon noun 1. the leader of a group of native Americans SynonymsIndian chiefIndian chieftain Related words Broader terms headman Narrower terms sachemBlack HawkCochiseCrazy HorseGeronimoHiawathaJosephKeokuk WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.