The concept of fuzziness may be approached more efficiently if it is considered as a fact of indeterminacy, that also covers many other concepts known under several labels like ambiguity, equivocacy, undecidability, uncertainty, vagueness, or crisis, chaos, disorder, entropy, etc. In this paper, for clarity's sake, semantical aspects will be, as much as possible, separated from the logical ones on the reason that the lack of verbal exactness may be remedied by avoiding, or replacing vague or ambiguous terms and expressions or/and stressing the intended meaning by redundancy. Semantic indeterminacy is usually provisional and it is to be eliminated, by convenient operations, even in mathematics.
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