Definition of "advisable"

Perhaps it will be advisable for me to state my reasons for marrying.

1813, Jane Austen, chapter 19, in Pride and Prejudice

Owing to the war, it was not thought advisable to carry out repairs to this pier, as this would have involved the temporary narrowing of the channel, and it was not until 1919 that it was decided to proceed with the construction of a steel-pile coffer dam round the south pier.

1949 November and December, “Notes and News: The High Level Bridge, Newcastle: Strengthening and Repairs”, in Railway Magazine, page 407