The phrase "former diplomat" refers to someone who used to work as a representative of their country, engaging in discussions and negotiations with other nations. However, they are no longer in this role. Full definition
After facing sharp scrutiny from observers and former diplomats who said the US was hanging its closest ally «out to dry,» the White House and multiple US officials said Russia was responsible and that the US stood with the UK in condemning Moscow. (businessinsider.com)
The Foreign Office is rather sensitive about former diplomats writing «kiss and tell» books. (totalpolitics.com)
Cross-party delegation calls off visit after Beijing refuses visa to Tory MP and former diplomat Richard Graham (theguardian.com)