- speculator - someone who makes conjectures without knowing the facts
--1 is a kind of thinker
Derived forms: verb speculate2, verb speculate1 - speculator, plunger - someone who risks losses for the possibility of considerable gains
--2 is a kind of adventurer, venturer; gambler
--2 has particulars: hedger; operator; scalper; venture capitalistDerived form: verb speculate4