Whiggish

[ hwig-ish, wig- ]

/ ˈʰwɪg ɪʃ, ˈwɪg- /

of, relating to, or characteristic of Whigs or Whiggism.

inclined to Whiggism.

Origin of Whiggish

First recorded in 1670–80; Whig + -ish¹

Whig·gish·ly, adverbWhig·gish·ness, noun

Finally, Obama weighed in with his teleological view of the historical process, revealing a rather optimistic and Whiggish view.
On ‘Hardball,’ Obama Touts HealthCare.gov, Dodges Clinton-Biden Talk|Ben Jacobs|December 6, 2013|DAILY BEAST
"Jersey will be the most whiggish colony on the continent," writes an officer of this corps of Cadwalader's.
The Campaign of Trenton 1776-77|Samuel Adams Drake
His passions, on the contrary, were violent even to slaying against all who leaned to Whiggish principles.
Macaulay's Life of Samuel Johnson|Thomas Babington Macaulay
As far, however, as he could be said to have any opinions, his opinions were Whiggish.
The History of England from the Accession of James II.|Thomas Babington Macaulay

I asked Hardinge last night what he thought of it, and he said it struck him as ‘too Whiggish.’
The Greville Memoirs|Charles C. F. Greville
For the Tories this tap represented all that was most loathsome, most repulsive, most Whiggish.
The London Mercury, Vol. I, Nos. 1-6, November 1919 to April 1920|Various