There is no conclusive evidence for either explanation. No conclusive evidence has been found. No conclusive evidence supports either statement. However, FDA has determined that the evidence is inconsistent and not conclusive. The reasons for this are unclear, and several theories exist without have conclusive evidence. It is not our job to render conclusive factual findings. However, the evidence is far from conclusive. Other scholars consider this identification "beyond conclusive proof". There are no conclusive arguments either way. He said the only form of conclusive proof is DNA. DNA tests are perceived as more scientific, conclusive and expeditious than searching the civil records. No conclusive cause was ever determined. However, we were unable to obtain conclusive results because they died during the experiments. It should not be assumed to be conclusive. A similar distinction exists between exploratory research and conclusive research.