speculatist

speculatist

(ˈspɛkjʊlətɪst)
n
a person who speculates
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in classic literature ?
But though he had, as we have said, formed his morals on the Platonic model, yet he perfectly agreed with the opinion of Aristotle, in considering that great man rather in the quality of a philosopher or a speculatist, than as a legislator.
[from theory] A speculatist; one given to speculation.
the opinion of what were denominated mere modern speculatists, but of the soundest thinkers upon commercial policy, aided by the experience of practical men ...