The origin of the root symbol is largely speculative.

However, the veracity of this statement is questionable, given the largely speculative nature of early medicine.

The report notes that the promised benefits of Dodd-Frank are largely speculative, "but the costs on the American economy have been quite real."

At present, further discussion of this question is largely speculative.

Analysts said silver's rally had been largely speculative and did not include significant buying by industrial users.

The profile of glossopterid trees is largely speculative as complete trees have not been preserved.

Reasons for the ride's move are largely speculative.

Due to the lack of sources, their localisation remains largely speculative, though an area close to the Helvetian territory is usually assumed.

Attempts to trace its original meaning are largely speculative.

Details of the original cast are few, and largely speculative, and there is no record of the opera's initial public reception.