sluttish

Adjective

• casual and unrestrained in sexual behavior
  • her easy virtue
    
  • he was told to avoid loose (or light) women
    
  • wanton behavior
    

• characteristic of or befitting a slut or slattern; used especially of women

Related words

• Synonyms: 
  easy , light , loose , promiscuous , wanton , blowsy , blowzy , slatternly