When personality 'ripens'?

[Mehrgan]

Hi all,
Would you please give me a verb to collocate with 'personality' meaning 'to complete'? The example being, '...adulthood is a time when personality (becomes complete)...'


['ripen' and 'mature' might be used in this case, but I was looking for a verb that suggests 'completion'.]


Many thanks!

[Barb_D]

... becomes fully developed.
... develops fully.

[Tdol]

Matures works well for me- it suggest fruition but doesn't suggest that the person had ossified.