Unprepossessed is an interesting word, but it is not very commonly used. It means "not influenced or affected by appearance or reputation". Synonyms for this word include unbiased, unprejudiced, fair-minded, impartial, and open-minded. Other words that share a similar meaning include objective, neutral, dispassionate, and detached. These words all convey the idea of being free from the influence of personal biases or external factors. A person who is unprepossessed is able to make decisions based solely on the facts and evidence at hand. This is an important trait for anyone working in a field where objectivity is crucial, such as law or journalism.