Which preposition to use with aimless

as Occurrences 3%

They fluttered about for two or three hours, as aimless as a couple of white butterflies.

of Occurrences 1%

Gracefulness still hovered about the human ruin, discernible in the most aimless of imbecility's weak movements, and the limbs were not those of one accustomed to the drudgery of life.

than Occurrences 1%

It is difficult to imagine anything feebler and more aimless than the whole proceeding.

Which preposition to use with  aimless