won't grow up
- childishImmature in manner
- immatureNot fully developed
- stuntedArrested in development
- eternal youthPermanent freedom from aging
- refusingDeclining to accept
stubborn · naive · innocent · toys · playtime · responsibility · adulthood · manchild · dependent · sheltered · spoiled · tantrum · whimsical · fairy tale · denial · arrested development · boyish · carefree
maturation and development
won't grow upmature
Fully grown or developed
grow up · come of age · develop · evolve · blossom
responsibility acceptance
won't grow upresponsible
Obligated to answer for actions
dependable · self-sufficient · dutiful · conscientious · take responsibility