"Unsocialized cats" refers to cats that have had little or no contact with humans or other animals, and therefore they may be fearful or unfriendly towards them. Full definition
NCFF arose, as many groups do, out of a clear need to address the ever growing numbers of unsocialized cats living out their lives in the shadows in trailer parks, industrial areas, rural areas and urban neighborhoods. (nocoferals.org)
The fact is, unsocialized cats taken to shelters are never adopted. (globalcatday.org)
Finally, Friends of Cats also eases the adoption process for unsocialized cats by housing them in a special «shy» building. (sandiegopetsmagazine.com)