Contradictory (adjective)

1. Involving or characterized by contradiction; inconsistent.
2. Contrary to what has been said or suggested; opposed.

Origin:

From latin contradictorius "speaking against", from contra- "against" + dicere "to speak".

Examples:

1. The two statements were contradictory.
2. The evidence was contradictory and difficult to interpret.
3. The results of the study were contradictory.
4. The information was contradictory and confusing.
5. The claims were contradictory and lacked credibility.