brunette
Synonym discussion
Sense: adjective/2
For describing a person, brunette is more specific than dark-haired and more stylish than brown-haired. Brunette usually points to dark brown hair and is common in fashion, film, and appearance talk. Brown-haired is the plain everyday choice, with no special tone. Dark-haired is wider: it can describe brown hair, but it may also include black hair, so it is less exact. Chestnut-haired is narrower and more literary; it suggests a warm brown shade with a hint of red. Compare: 'The new doctor is brunette' focuses on her dark brown hair. 'The new doctor is dark-haired' tells you only that her hair is dark.
Etymology
English borrowed brunette from French. In French, it is the feminine form of brun, a word meaning brown or dark. English first used it as a noun for a woman with dark brown hair, and later also used it as an adjective for hair or for a person with that hair colour.