Things that are scientific are based on the principles and methods of science. Scientific evidence is the result of study and experimentation, not opinions and guesses.

If you want to prove something, finding scientific support is your best bet. The scientific method is the surest way to study and learn about things because it involves experiments, research, and careful analysis of the facts. Scientific evidence is more than an opinion or a wish — it's been studied and supported by some of our best minds. Anyone can have an opinion, but it doesn't mean much without scientific studies to back it up.

Definitions of scientific
  1. adjective
    conforming with the principles or methods used in science
    “a scientific approach”
    based in scientific and industrial progress
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    not consistent with the methods or principles of science
    based on theories and methods erroneously regarded as scientific
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  2. adjective
    of or relating to the practice of science
    scientific journals”
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