Indicative (adjective)

1. Tending to show or suggest something.
2. Giving an indication or suggestion of something.
3. Serving to indicate or point out.

Origin:

From latin indicativus, from indicare ("to indicat.e")

Examples:

1. The poll results are indicative of the public's opinion.
2. The symptoms were indicative of the disease.
3. The market trend is indicative of a recession.
4. The test results were indicative of a problem with the engine.
5. The behavior of the suspect was indicative of guilt.