Unkempt (adjective)

1. Not neat or tidy in appearance or dress.
2. Not well-groomed or well-cared-for.

Origin:

Middle english, from un- + kempt, past participle of kemb to comb, from old english cemban; akin to old high german kemben to comb.

Examples:

1. The unkempt man on the street corner.
2. The unkempt room was filled with dirty clothes and old food.
3. He looked unkempt and disheveled after a long night of partying.
4. The unkempt garden was overgrown with weeds.
5. She had an unkempt appearance, with wild, tangled hair.