Which preposition to use with fatuous

as Occurrences 2%

Our city governments are, in many instances, foul cancers on the body politic; and for us to boast of having solved the problem of local self-government is as fatuous as for a strong man to exult in his health when his body is covered with running sores.

in Occurrences 2%

I haven't been idle or fatuous in that matter, I have taken every possible precaution against miscarriage of our plans.

Which preposition to use with  fatuous