hypernationalistic
adjective
hy·per·na·tion·al·is·tic
ˌhī-pər-ˌnash-nə-ˈli-stik
-ˌna-shə-nə-ˈli-stik
variants
or hyper-nationalistic
: extremely or excessively nationalistic
… a frequent font of rousing, hypernationalistic sentiments.—Andrew Meier
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Merriam-Webster unabridged
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