existential

The word "existential" comes from "existence," and at its heart it is about what it means to be human. It often points to the deepest parts of life: meaning, purpose, freedom, choice, responsibility, death, and the feeling of being alone in a huge world. In philosophy, especially existentialist thought linked to writers such as Jean-Paul Sartre and Albert Camus, it describes the idea that people are not handed a fixed purpose from the start and must shape their lives through their choices.

You might see the word in literature, psychology, and philosophy. A novel may explore existential questions if its characters wrestle with guilt, freedom, identity, or the point of living. In psychology, "existential therapy" helps people face fears about death, isolation, choice, and meaning. In everyday speech, an "existential crisis" is a period when someone feels shaken by deep questions about who they are, what matters, or where their life is going.

The word also has a broader and very common modern use: it can describe something that threatens existence or survival. An "existential threat" is not just a worry; it is a danger serious enough to destroy a person, an organization, a way of life, or even humanity. Climate change, nuclear war, or the possible collapse of a company might all be described this way, depending on the context.

So while the word can sound heavy, its basic idea is clear. It either deals with the biggest questions of human life and meaning, or it describes a threat to existence itself. In both uses, it points to something basic, serious, and impossible to ignore.