2 adverbs to describe how to retrospective

Tobacco is notoriously a promoter of reflection; there must be something essentially retrospective in the nature of the weed.

For though "defrauded," as we saw, in his young years, "of the sweet food of academic institution," he is yet essentially a scholar, and all his work mainly retrospective, as I said; his own sorrows, affections, perceptions, being alone real to him of the present.

2 adverbs to describe how to  retrospective  - Adverbs for  retrospective