Which preposition to use with unwont

to Occurrences 1%

Titian, indeed, may be said to have first opened his eyes to the mysteries of nature; but they were no sooner opened, than he rushed into them with a rapidity and daring unwont to the more cautious spirit of his master; and, though irregular, eccentric, and often inferior, yet sometimes he made his way to poetical regions, of whose celestial hues even Titian himself had never dreamt.

Which preposition to use with  unwont