“ Sigma ” is slang for someone who’s cool, but who plays by their own rules. They’re rebellious and independent, but also popular and successful. Originally, it referred to “ sigma males,” or desirable men who ignore social standards or conventions. “ Sigma ” describes someone who’s cool without trying. " Sigma ” is a slang word for “the best” or someone who is a humble alpha male. What does sigma mean ? Sigma is an Internet slang term, especially among young men, referring to a man whose self-assured, dogged individualism is considered a model of status, success, and attractiveness. In general mathematics, uppercase Σ is used as an operator for summation. The Latin letter S derives from sigma while the Cyrillic letter Es derives from a lunate form of this letter. The shape (Σς) and alphabetic position of sigma is derived from the Phoenician letter (shin).
