1. The manner of a rude or insensitive person
   "His loutishness at the art gallery embarrassed his date";
   - boorishness, oafishness
    
2. Inelegance by virtue of being an uncouth boor
   "His loutishness at the formal event made others uncomfortable";
   - boorishness, uncouthness
    
3. The state or quality of behaving like a troublemaker, often violent; like a rude violent person; like a yob
   "True, this is hardly the drink to inspire ‘Girls Gone Wild’ loutishness"

Type of: discourtesy, inelegance, rudeness