In grammar the superlative of an ajective or adverb is the greatest form of adjective or adverb which indicates that something has some feature to a greater degree than anything it is being compared to in a given context. For example, if Adam is 45, Bess is 35, and Chris is 25, Adam is the oldest of the three, because his age transcends those of Bess and Chris in one direction, while Chris is the youngest, because his age transcends those of Adam and Bess in the other direction. If Dan, who is 50, and Edna, who is 20, join the group, Dan now becomes the oldest and Edna the youngest.