The acronym VUCA appeared in a military context to refer to volatile, uncertain, complex and ambiguous situations. These four terms have had a strong resonance in management as organizations are typically faced with choices that potentially impact their survival in increasingly unstable environments. However, the acronym VUCA generates interpretations that vary according to the disciplines and situations in which it is used, sometimes in a contradictory or ambiguous sense. We will therefore try to clarify these terms by examining the point of view adopted by different disciplines involved with the study of decision-making.