Untidy in appearance. / Scurfy.

(informal) An artificial intelligence researcher who believes that intelligence is too complicated (or computationally intractable) to be solved with the sorts of homogeneous system favoured by the "neats".

Name for a dog.

plural of scruffy

The state or condition of being scruffy; untidiness.

Having the characteristics of style and lovable scruffiness combined. / Stylish rather than fashionable. / Classy without appearing to make an effort.