"Not even wrong" is a phrase used to describe pseudoscience or bad science.
[1] The phrase is generally attributed to the theoretical physicist Wolfgang Pauli, who was known for his colorful objections to incorrect or careless thinking.
[2][3] Rudolf Peierls documents an instance in which "a friend showed Pauli the paper of a young physicist which he suspected was not of great value but on which he wanted Pauli's views.
Peierls remarks that quite a few apocryphal stories of this kind have been circulated, and mentions that he listed only the ones personally vouched for by him.
He quotes another example when Pauli replied to Lev Landau, "What you said was so confused that one could not tell whether it was nonsense or not.