1. Easily approached
   "a site approachable from a branch of the Niger";
   - reachable
    
2. Easy to meet, converse or do business with
   "a friendly approachable person"
    
3. Capable of being read with comprehension
   "the tales seem more approachable than his more difficult novels";
   - accessible

See also: accessible, comprehendible, comprehensible

Antonym: unapproachable