on living with hostile strangers

vit·ri·ol·ic

ˌvitrēˈälik/

adjective

1. filled with bitter criticism or malice.

   "vitriolic attacks on the politicians"

   synonyms:

   acrimonious, rancorous, bitter, caustic, mordant, acerbic,  trenchant, virulent, spiteful,savage, venomous, poisonous, malicious, splenetic;