Ascertainedly

The reader was, perhaps, surprised by the smallness of the number to which our foregoing analysis reduced Alpine summits bearing an ascertainedly peaked or pyramidal form.

Source: wiktionary

[…] in the ordinary bargaining of daily life, over for instance the sale of a house or a car or setting the level of a salary or fee, if one found that the price proposed to the would-be buyer was consistently and ascertainedly beyond the level he was likely to pay, one would be entitled to conclude that whoever was proposing that price was an enemy to a bargain’s actually being struck.

Source: wiktionary