Why is the meaning of "nervous" and "anxious" important to the reader's understanding of the novel?

The importance of "nervous" and "anxious" to the understanding of the novel is that the Baudelaire orphans are anxious about the whereabouts of their friends, the Quagmires. The Baudelaire orphans have a lot of anxiety about their new guardians too. This anxiety quickly erodes their hope for having a better guardians and it is important for the reader to understand the mindset of the orphans at the onset of the novel.