1. Having or expressing the belief that human existence and behavior are meaningless; that is, unreasonable or impossible to believe: "The scientist could not present an acceptable rationale for his absurdist statements regarding the violence of people in different societies."
2. A reference to or concerning that which is inconsistent with reason, logic, or common sense: "The absurdist student told his teacher that the dog ate his homework."

1. An advocate of a philosophy that holds that human existence is meaningless and irrational and that any attempt to understand the universe will ultimately fail: "The renown absurdist from a foreign university applied to teach in Canada."
2. A person who acts or presents characteristics of being ridiculous: "The politician was described by some people as another in a series of absurdists who were candidates for mayor."