his expression showed how highly he valued his own opinions and scored the view of the others.

smug?

Yes. Smug can describe his expression.

Is this what you mean?

Based on the description provided, the person's expression can be described as "smug." They displayed an attitude of superiority and self-satisfaction, indicating that they highly valued their own opinions while dismissing or downplaying the perspectives and views of others.

To determine if the word "smug" accurately captures the intended meaning, we can consult various sources, such as a dictionary or thesaurus. One of the easiest ways to access such resources is through an internet search engine.

To search for the meaning of "smug," you can follow these steps:

1. Open a web browser (e.g., Google Chrome, Firefox, Safari).
2. Type "definition of smug" or "meaning of smug" in the search bar and press Enter.
3. Review the search results, which may include dictionary websites, definitions, and related information.

By following these steps, you'll be able to find the definition, synonyms, and other relevant details about the word "smug."