Is there an accepted term for the opposite of mode in statistics?

Question

In descriptive statistics, there are terms for all sorts of things. The mean, median, and mode for a set of data are each three very frequently thrown around examples.

The mode in particular is defined as the result that has occurred the most frequently.

Is there a name for the opposite of this? Is there a name for the result which has occurred the least frequently (but still a nonzero number of times)?

If I were to guess at a name or come up with one myself, perhaps a name like "anti-mode" might be appropriate, but I was wondering if there was an already accepted name.

Answer 1

From Communication Research Statistics by John C. Reinard:

Some have developed the notion of an anti-mode (Vogt, 2005, p. 11) to describe the least frequent score, but thankfully, in communication studies this term has not caught on.

I found indeed a number of sources where this terminology is used, including the Wikipedia page on multimodal distributions. However, as Reinard seems to be clearly saying, not everyone is fond of this terminology, so it wouldn't qualify as broadly accepted. Reinard doesn't suggest another word though, so I would still go for this one if I really needed a word.

Answer 2

I prefer the term

least frequent score

which is from @Armaud's answer. That term is easily understood by anyone without needing to know any special definitions.

In the special case of a bimodal distribution, you could refer to the 'peaks' (the two modes) and 'trough' (the lowest point). Example here:

the extent of the difference between the peaks and trough of the (bimodal) distribution