A number is between - 1 and - 5. What is the least possible integer value of its opposite

We know that the final answer has to be an integer, and the integers between - 1 and - 5 are:

-2, - 3 and - 4

We want the number that has the lowest value when you take its opposite. If we take the opposites of those numbers, we get:

2, 3, and 4

The lowest value is 2, therefore, the number the problem is looking for is - 2