If something is woolly, it's covered in (or made of) soft, curly fur. Don't forget to wear your woolly hat — it's cold out there!

You can use this adjective for anything made from wool, like your favorite woolly sweater or the woolly socks your grandma knits. It's also useful for things that look or feel like a sheep's woolly coat: "Look at those strange, woolly clouds!" "He shaved his woolly beard off!" Informally, it can be a great way to describe confusion or befuddlement, like the woolly thoughts that go through your mind when you're absolutely exhausted.

Definitions of woolly
  1. adjective
    covered with dense often matted or curly hairs
    woolly lambs”
    synonyms: woolly-haired, wooly, wooly-haired
    haired, hairy, hirsute
    having or covered with hair
  2. adjective
    covered with dense cottony hairs or hairlike filaments
    synonyms: lanate
    haired, hairy, hirsute
    having or covered with hair
  3. adjective
    having a fluffy character or appearance
    synonyms: flocculent, wooly
    yielding readily to pressure or weight
  4. adjective
    confused and vague; used especially of thinking
    woolly thinking”
    woolly-headed ideas”
    synonyms: addled, befuddled, muddled, muzzy, woolly-headed, wooly, wooly-minded
    mentally confused; unable to think with clarity or act intelligently
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