Which preposition to use with introspective

in Occurrences 2%

Meredith grew more introspective in his later years, as is shown in such long, analytical novels as, One of Our Conquerors (1891), Lord Ormont and His Aminta (1894), and The Amazing Marriage (1895).

as Occurrences 1%

Jukie's eyes met mine swiftly, not dreamy and introspective as usual, but keen and thoughtful.

to Occurrences 1%

Her life was the normal blossoming of a nature introspective to a high degree, whose best thought could not exist in pretence.

Which preposition to use with  introspective