fatuous (adjective)

1. In the magical kingdom of Elsoria, the fatuous prince believed he could defeat the mighty dragon with his wooden sword.

2. The fatuous protagonist in the novel had a habit of making foolish decisions, leading to disastrous consequences.

3. During the reign of the fatuous king, the empire faced numerous defeats and economic decline, plunging the kingdom into turmoil.

4. In a dystopian future, the fatuous leaders of the totalitarian regime suppressed intelligence and critical thinking in order to maintain control over the population.