资料来源 : Webster's Revised Unabridged Dictionary (1913)

      The speculative merchant exercises no one regular,
      established, or well-known branch of business. --A. Smith.
-- {Spec"u*la*tive*ly}, adv. -- {Spec"u*la*tive*ness}, n.

资料来源 : WordNet®

speculativeness
     n : financial risk