懂中文 Dong Chinese

鳏寡孤独

guān​guǎ​gū​dú

fig. people with no one left to rely on

Definitions

鳏寡孤独 (鰥寡孤獨) 

guān​guǎ​gū​dú

lit. widowers, widows, orphans and the childless; fig. people with no one left to rely on

Sources