Direct Contradiction:
* Contradict: This is the most straightforward term.
* Dispute: This implies a disagreement or challenge.
* Disagree: This is a milder form of contradiction.
* Deny: This implies that you believe the other person is wrong.
* Refute: This involves providing evidence or arguments to show the other person is wrong.
Indirect Contradiction:
* Counter: This means to offer an opposing argument or viewpoint.
* Rebut: This is similar to counter, but it involves a more forceful refutation.
* Challenge: This implies a questioning of the other person's statement.
* Qualify: This means to agree with part of what the other person said, but disagree with other parts.
* Clarify: This can be used to point out that the other person's statement is misleading or incomplete.
Other possibilities:
* Take the opposite view: This is a more general way of saying that you hold a different opinion.
* Be the devil's advocate: This is a playful way of arguing against a position, even if you agree with it.
The best term to use will depend on the specific context and the tone you want to convey.