Definition of "exorbitant"

But whatever might be the internal thoughts of Macedonian officers, they held their peace before Alexander [the Great], whose formidable character and exorbitant self-estimation would tolerate no criticism.

1856, George Grote, “Military Operations and Conquests of Alexander, after His Winter-quarters in Persis, down to His Death At Babylon”, in History of Greece, volume XII, London: John Murray, […], part II, page 282

Love, being an extremely exacting usurer (a sense of exorbitant profit, spiritually, by an exchange of hearts, being at the bottom of pure passions, as that of exorbitant profit, bodily or materially, is at the bottom of those of lower atmosphere), every morning his feelings were as sensitive as the money-market in calculations upon his chances.

1874, Thomas Hardy, “Gabriel’s Resolve—The Visit—The Mistake”, in Far from the Madding Crowd. […], volume I, London: Smith, Elder & Co., […], page 38

[M]any low-income people are "unbanked" (not served by a financial institution), and thus nearly eaten alive by exorbitant fees.

2015 January 18, Charles M[cRay] Blow, “How expensive is it to be poor ”, in The New York Times