jingoistic (adjective)

1. The artist's jingoistic painting depicted the strength and dominance of their own nation, while belittling the cultures and achievements of others.

2. The protagonist's jingoistic views on love led them to believe that relationships between people from different nations were doomed to fail.

3. During the war, the jingoistic propaganda spread by the government fueled intense nationalism and hatred towards the enemy.

4. The jingoistic novel portrayed an idealized version of their nation's history, exaggerating their accomplishments and downplaying any harm caused to other countries.