What does the term "gnarled" refer to in terms of physical appearance?

The term "gnarled" refers to a physical appearance that is twisted and lumpy, typically used to describe something that has a rough texture or an irregular, contorted shape. This word is often associated with features like the branches of an old tree or the hands of an elderly person, suggesting age and wear that contribute to its rugged appearance. In contrast, smooth and polished, soft and flexible, and bright and shiny describe qualities that are opposite to the characteristics conveyed by "gnarled."