Pilous is a rarely used word that means covered in or having an abundance of hair or fur, like a hairy caterpillar or a fuzzy teddy bear. Its synonyms, however, offer a range of alternatives to describe the same attribute. For instance, hirsute, hirsutism, and shaggy all refer to thick hair that covers a particular object or body part. Meanwhile, woolly and hairy describe something that has long, thick hair, like a woolly lamb or a hairy dog. Furry, bushy, and whiskered are other descriptors that suggest a particular type or style of hairiness. Regardless of the chosen synonym, they all communicate the furry, hairy, and cozy feeling of pilous.