What does gnarled face mean?

A "gnarled face" refers to a face that is marked by deep wrinkles, creases, and irregularities, often suggesting age or hardship. The term "gnarled" typically describes something twisted or rugged, like an old tree, and when applied to a face, it conveys a sense of character and experience. Such a description often evokes a feeling of resilience or a life lived through challenges.