Definition of "existential" in English

adjective

1. Of or relating to existence.

2. Concerning the very existence of something, especially with regard to extinction.

   • existential risk

3. Based on experience; empirical.

4. (philosophy) Of or relating to existentialism.

5. (linguistics) Relating to part of a clause that indicates existence, e.g. "there is".

noun

1. (linguistics) Ellipsis of existential clause.

2. (programming) Ellipsis of existential type.