adjective
Definition: Something that is extremely silly, unreasonable, or illogical, often to the point of being laughable or nonsensical.
Example: It was absurd to think that the world would end tomorrow without any warning.
noun
Definition: A situation or condition that is ridiculous, unreasonable, or nonsensical, often highlighting the lack of meaning or purpose in life.
Example: The philosopher discussed the absurd of human existence in his lecture.