Going against logic.

(rhetoric) A contradiction in related terms or ideas. Usually an inconsistency in syllogisms, of a person or group supposedly of one set of ideals.

(mathematics) An antilogarithm.

plural of antilog

plural of antilogy

Opposing the cutting down of trees for wood.

Of the contrary name or character; opposite. / Being or relating to that pole of a crystal which becomes negatively electrified when heated.

Failure to obey logic; fallacious thinking or reasoning.

(logic) A false syllogism in which two premises contradict the third

plural of antilogism