ungroomed

adjectives

not neat and smart in appearance
"he was wrinkled and ungroomed, with a two-day beard"; "ungroomed hair"
antonym
is similar to
used of hair; thick and poorly groomed
"bushy locks"; "a shaggy beard"
is similar to
not well dressed
is similar to
(of hair or clothing) not brushed
"snarled unbrushed hair"; "the suit was wrinkled and unbrushed, as if it had been slept in"
see also
not neat and tidy
"careless and untidy in her personal habits"; "an untidy living room"; "untidy and casual about money"