Her aunt did not neglect her: she wrote again and again; they were receiving frequent accounts from Edmund, and these accounts were as regularly transmitted to Fanny, in the same diffuse style, and the same medley of trusts, hopes, and fears, all following and producing each other at haphazard.
There are no more uses of "haphazard" in the book.
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She seemed to have a most haphazard system of record keeping.
The haphazard manner in which she spent money drove her husband crazy.