I believe Vedana is tied to craving/aversion - ( pleasant, unpleasant or neutral) - that stimulates ‘movement’ as a reaction/response.
My understanding is that Nibbida is about seeing things clearly, not related to having the like/don’t like response, but recognising the ‘unwholesome’ for what it is, and, from a point of wisdom, not associating with it, seeing cause and effect clearly. So from this perspective it evokes disgust, distaste etc