Can anyone tell me what the Thai words are for 'not applicable' (also written as 'n/a')?

I want to write this where a scientific name does not apply. For example, the word 'apple' has a scientific name (I will indicate it), however the word 'to cook' does not (in this case, I will indicate 'not applicable').

Thank you for your help.

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Dear Saastrajaa,

Thank you very much for that. I appreciate you help.

I did see a few words when I was searching for this, however they didn't exactly seem to be right. This seems perfect for this particular situation.