When you include adjectives about personality in your writing, you are using fewer words to paint a picture for your reader. Even though you are using fewer words, you are using the words more effectively. This information is valuable when building characters, describing historical figures, and writing to make an impact.

Attributive adjectives are words that will expand on specific traits, qualities, and features.

Attributive adjectives modify more than just people, including observations, size/shape, age, color, origin, material, and qualifier adjectives. 

When using adjectives to describe a person’s personality, you can use one of two types of words: positive or negative. 

When you use a positive adjective, you are creating a positive image of the character. Negative adjectives, on the other hand, spotlight the negative characteristics of a person (or character). These words are powerful in creating reader opinions, so choose the words wisely to communicate clearly. 

(https://argoprep.com/blog/206-personality-adjectives-to-describe-anybody/)