This is one of the nine intelligences recognized in the Multiple Intelligence (MI) Theory, which was first introduced by Harvard University Professor Dr. Howard Gardner in 1983. Read my article Multiple Intelligence Theory for more on this.
Existentialist Intelligence is the inner quality of individual that helps focus on the skills of thinking of existence in the broad sense. This is the basic quality of being an atheist or existentialist. Every individual has unique set of qualities with a certain combination of all nine intelligences. The people with the strong presence of this intelligence are sensitive to human being. They are the thinkers of the whole universe and existence of lives. Persons with strong Existentialist Intelligence are good at understanding creation and evolution of lives in the universe. They are eventually good at enjoying the existence of life and predicting its state in the future.
People with strong Existentialist Intelligence are very good in:
Being happy with the existence
Getting Attracted with the universe and its components
Learning from religious norms
Identifying Differences among religions
Criticizing past, present and future existences
Thinking of solutions of human sustainability
Professionally, these people are usually Religious Leader, Existentialist Philosopher, Theologist, Cosmological Scientist, National Reformer, Evolutionist, Medical Researcher, Human Rights Activist, Museum Curator, Science Fiction Writer, Researcher of life on other planets etc.
Gautama Buddha, also known as Siddhārtha Gautama, Shakyamuni Buddha, or simply the Buddha, an ascetic and sage, on whose teachings Buddhism was founded, born in Nepal in 5th or 4th century BC
Fyodor Mikhailovich Dostoevsky (1821 – 1881), a Russian novelist, short story writer, essayist, journalist and existential philosopher
Please follow my other articles on specific intelligence for extensive details on Verbal Linguistic Intelligence, Logical-Mathematical Intelligence, Visual Spatial Intelligence, Bodily-Kinesthetic Intelligence, Musical Intelligence, Interpersonal Intelligence, Intrapersonal Intelligence, and Naturalist Intelligence.