What's the noun for pragmatist? Here's the word you're looking for.
pragmatist
One who acts in a practical or straightforward manner; one who is pragmatic; one who values practicality or pragmatism.
One who acts in response to particular situations rather than upon abstract ideals; one who is willing to ignore their ideals to accomplish goals.
One who belongs to the philosophic school of pragmatism; one who holds that the meaning of beliefs are the actions they entail, and that the truth of those beliefs consist in the actions they entail successfully leading a believer to their goals.
(philosophy) The idea that beliefs are identified with the actions of a believer, and the truth of beliefs with success of those actions in securing a believer's goals; the doctrine that ideas must be looked at in terms of their practical effects and consequences.
“He maintained that his position was one of pragmatism rather than principle.”
“This pragmatism continues to inform Republicanism today, giving it the debt-laden, welfarist character Sullivan rails against.”
“Ah, how the heady idealism of youth is dashed upon the rocks of the pragmatism of adulthood.”
pragmaticism
A Peirceanphilosophy based on strictlogic, the immutability of truth, the reality of infinity, and the difference between (i) actively willing to control thought, to doubt, to weigh reasons, and (ii) willing not to exert the will, willing to believe.