Frowzy and Threadbare

Frowzy adjective - Negligent of neatness especially in dress and person; habitually dirty and unkempt.

Threadbare and frowzy are semantically related In some cases you can use "Threadbare" instead an adjective "Frowzy".

Threadbare adjective - Showing signs of advanced wear and tear and neglect.

Frowzy and threadbare are semantically related in worn topic. Sometimes you can use "Frowzy" instead an adjective "Threadbare".