causal
Acting as a cause; producing an effect.
Adjective
This term is strictly analytical and is most frequently found in scientific, legal, or philosophical discussions. It describes the direct mechanism by which one event triggers another, removing any ambiguity about whether a relationship is merely a coincidence or a genuine driver of change.
It is often confused with the word casual, but the two are opposites in terms of intent and structure. While casual suggests something relaxed or accidental, causal implies a rigid, deterministic connection where a specific action leads to a predictable result.