出典:Wiktionary
prima facie (comparative more prima facie, superlative most prima facie)
prima facie (not comparable)
In common usage, often used to mean that the conclusion is obvious. In more narrow legal usage, it means rather that there is a case to answer – that the question is clear, but the conclusion is not necessarily obvious. See also Wikipedia at Prima facie: res ipsa loquitur and Res ipsa loquitur: contrast to prima facie.