speculative
adjective | \ ˈspe-kyə-lə-tiv, -ˌlā- \ | spec·u·la·tive
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: involving, based on, or constituting intellectual speculation; also : theoretical rather than demonstrable speculative medical testimony concerning the cause of death : theoretical rather than demonstrable speculative medical testimony concerning the cause of death
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: of, relating to, or being a financial speculation speculative securities speculative home building