The term LIKE HORSEHAIR can be summarized by the crossword solution COARSE, which is a six-letter word. COARSE is an adjective that describes something that is rough or harsh in texture, often used to describe fabrics or hair. Horsehair is a type of COARSE material that is often used to make items such as brushes and upholstery. Therefore, the term LIKE HORSEHAIR can be used to describe something that has a similar texture to horsehair.