unsinnig
Unsinnig is a German adjective meaning lacking sense or rational justification; it can also be used predicatively in constructions such as "Es ist unsinnig, ..." In English, the closest equivalents are nonsensical, absurd, or senseless.
Etymology: The term is formed with the negation prefix un- and Sinn, meaning sense, literally "without sense."
Usage: Unsinnig is typically used to dismiss arguments, plans, or claims as irrational or poorly reasoned. Examples: