Which preposition to use with immature

as Occurrences 3%

At first the independent Norwegian literature appeared as immature as the conditions surrounding it.

for Occurrences 1%

" "Mathilde is immature for her age.

in Occurrences 1%

The general community, in civil life, includes not only the strong and healthy, but also the defective, the weak, and the sick, the blind, the halt, the consumptive, the rheumatic, the immature in childhood, and the exhausted and decrepit in age.

of Occurrences 1%

For the matter of that, Sofia herself might have been the dupe of this popular delusionwhich Mama Thérèse did her best to encourage by never referring to Dupont save as "mon mari"had they been less imprudent in recriminations which had passed between them in private when Sofia was of an age so tender that she was presumed to be safely immature of mind.

to Occurrences 1%

To fly across as he had that morning was one thing, but to pen one up in a nice little pocket in the hills, and then on a vertical radius of three or four thousand feet, to circle round over one's headanything yet devised by the human nightmare was crude and immature to this.

Which preposition to use with  immature