Trueskin is the term used to describe a natural, honest and authentic personality or appearance. Many synonyms can be used for this term, such as genuine, real, true, sincere, and straightforward. These words can be used interchangeably to describe someone who is trustworthy and honest. Authentic and natural are also good alternatives that can be used to describe something that is not fake, artificial or forced. Other synonyms for trueskin include unpretentious, down to earth, and unaffected. It's important to use these words when describing someone or something that is true to its nature, sincere, and honest in a way that is admirable and trustworthy.