English edit

Etymology edit

From full-grown +‎ -ness.

Noun edit

full-grownness (uncountable)

  1. (rare) The state, quality, or condition of being full-grown; adulthood; maturity.
    • 1976, John R. Meyer, Reflections on Values Education, page 10:
      But this form can be known only when the mussel is full-grown, and this full-grownness in turn, is the goal of everything the mussel does.