Tow-haired refers to a person having light blonde hair. The antonyms for tow-haired can be dark-haired, black-haired, brown-haired, auburn-haired, red-haired, or even silver-haired. These terms are used to describe hair color for people who have different shades, tones, and hues of hair. People with dark or black hair have pigments of eumelanin while people with blonde hair have lower levels of eumelanin and higher levels of pheomelanin. Auburn hair has a combination of both pigments, while red hair has more pheomelanin. Silver hair, on the other hand, is caused by a lack of melanin production. All these terms convey rich, diverse, and unique hair characteristics.