Veras
Prince
I'm aware about that. But what you say is not true: the use of 'most' in English doesn't necessarily involve a comparison. It is a comparison when you use 'the most'. But if you say 'a most', or just 'most' ('A most interesting person' = 'Uma pessoa muito interessante/interessantíssima', or 'Most beautiful!' = 'Lindíssimo!'), you're using the closest equivalent in English to an absolute superlative (I've once seen it considered as an actual English absolute superlative).
Feel free to correct me if I'm saying something wrong.
I didn't realize that you were a portuguese speaker, so I feel stupid now for trying to explain portuguese grammar for you

Well, I guess you're correct, I haven't thought about the 'a most interesting person' case.