Answer: younger

AnswerCrossword Clue
YOUNGERNot so far along
youngerHaving lived or existed for only a short time
youngerImmature or inexperienced
youngerRelating to, characteristic of, or consisting of young people
youngerHaving the qualities popularly associated with young people, such as enthusiasm and optimism
youngeran inferior in age
youngerDenoting the heir of a landed commoner
youngerUsed to denote the younger of two people of the same name
youngerNot as old as the norm or as would be expected
YOUNGERLike Princess Leia vis-a-vis Luke Skywalker
YOUNGERHow hair dye may make you look
YOUNGEROutlaw Cole
YOUNGERLess hoary
YOUNGERLike a person's junior
YOUNGEROne of "Quantrill's raiders"
YOUNGERSon's designation, with "the"
YOUNGERLess aged
YOUNGERConfederate of Jesse James
YOUNGER"... Than Springtime"
YOUNGERMore callow
YOUNGERLess mature.
YOUNGERLess experienced.
YOUNGERThe way everyone wants to look.
YOUNGERMore juvenile.
YOUNGERNot as advanced
YOUNGERLess mature
YOUNGERJunior