Showing cause refers to providing evidence or reasons to support a particular claim, argument or statement. Antonyms for showing cause would, therefore, be terms that suggest the opposite of this. Such antonyms could include "disprove," "refute," "discredit," "weaken," "invalidate," and "challenge." These words reflect an approach that invalidates a particular claim, statement or argument, rather than supporting it. Unlike showing cause, these terms generally indicate a lack of evidence or reasons to support a particular claim, and suggest a need for further investigation, exploration or debate. By being aware of antonyms for showing cause, one can better understand different perspectives and approaches to reasoning and argumentation.