softest
adj. A2 Elementary US //ˈsɔftəst// UK //sˈɒftəst// soft·est
adj. the most gentle, smooth, or easy to touch. You use this to describe the thing that is least hard or firm in a group.
adj. the superlative form of 'soft', indicating the highest degree of gentleness, smoothness, or lack of firmness.
This is the softest blanket I have ever owned.
After trying several different pillows, she finally chose the softest one for her bedroom.
The artist used the softest brush available to ensure that the delicate petals in the painting would not appear too harsh or defined.