Flexibility of Thumb = Adaptability

The flexibility of the thumb tells the degree of adaptation of that person. If the thumb is very stiff (i.e. it does not bend back) then these people are very strong on their views (to the degree of being stubborn) and they find is difficult to adjust with new situations and people, but the good thing is that they are reliable because they won’t change their views. On the contrary, if the thumb is very flexible on the first joint (bends back easily) then these people are very adaptable and they don’t find it difficult to adjust with anyone or in any new situations. But the bad thing is that they are also quite fickle minded and unreliable.