* Absurd means ridiculous, illogical, or senseless.
* Accede means to agree to a request or demand.
Example:
* "The idea of flying cars is absurd." (It's illogical and senseless.)
* "The government acceded to the demands of the protesters." (They agreed to their request.)
Therefore, absurd suggests something is unreasonable or unacceptable, while accede implies agreement and acceptance.