There are a variety of synonyms to denote the term "not invited." Some of the commonly used synonyms include "uninvited," "excluded," "left out," "omitted," "overlooked," "snubbed," "rejected," and "shunned." All of these terms refer to the situation of someone not being invited to a social gathering or event. The phrase "not invited" often conveys a negative connotation and can be perceived as hurtful or insulting. It is essential to remember that not being invited to a particular event does not define one's worth or personality. One should focus on their positive attributes and cherish the relationships that they have built.