Do you mean writing code in actual human language?
If we include constructed languages, probably lojban or some highly regular language meant to be logically unambiguous. But even that is not perfect.
If just natural human languages, likely none fit the bill.
Human languages are ambiguous, even at the human level. And even if they’re not, the way humans conceptualize things do not translate 1-1 to computers. So any human sentence would have maybe 10s-100s of valid interpretations for how a computer behaves, and each may have different behavior but all equally valid interpretations of the human speech.
This is why programming languages exist, to make humans write at a level that can be interpreted unambiguously based on the rules of the language. Although AI can give some effort to turning natural speech into code, the problem of ambiguity and multiple solutions will always exist.
This is one of the main difficulties in writing code too – what your boss/client/you before you write the code says they want and what you do based on that may not line up with expectations even though your code is 100% a valid interpretation of the requested task.
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