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Related to triumphalism: triumphalist
Disproportionate or unreasonable celebration of the perceived successes and virtues of a given group, religion, or ideology relative to those of others.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
excessive celebration of the defeat of one's enemies or opponents
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
tri•um•phal•ism(traɪˈʌm fəˌlɪz əm)
1. triumphant spirit or character.
2. a proud attitude or belief that one's church, political party, etc., is better or truer than all others.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
triumphalism[traɪˈʌmfəlɪzəm] N → triunfalismo m
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005