unwashed
adj.adj. not clean or not washed. It can also describe someone who does not care about their appearance or social rules.
adj. unclean or not having been washed; by extension, describes a person who lacks social polish or conventional grooming standards. Often carries a derogatory or dismissive tone.
The unwashed clothes are starting to smell.
He was dismissed from the interview because his unwashed appearance suggested a lack of professionalism.
The critic dismissed the band as a group of unwashed outsiders, failing to recognize the technical mastery hidden behind their intentionally disheveled aesthetic.
From Middle English unwasched, unwasschyd, unwessched, a weak verb conjugation of earlier Middle English unwaschen (“unwashen”), equivalent to un- + washed.