Speculative may refer to:

In arts and entertainment

*Speculative art (disambiguation) *Speculative fiction, which includes elements created out of human imagination, such as the science fiction and fantasy genres **Speculative Fiction Group, a Persian literature group whose website which is named Fantasy Academy **Speculative poetry, a genre of poetry that focuses on fantastic, science fictional and mythological themes *Speculative screenplay, or spec script, a non-commissioned, unsolicited screenplay *The Speculative Society, a Scottish Enlightenment society dedicated to public speaking and literary composition, founded in 1764

In computing

*Speculative execution, in computer systems is doing work, the result of which may not be needed. This performance optimization technique is used in pipelined processors and other systems *Speculative multithreading, a dynamic parallelization technique that depends on out-of-order execution to achieve speedup on multiprocessor CPUs. It is a kind of speculative execution that occurs at the thread level as opposed to the instruction level

In economics

*Speculation, the practice of engaging in risky transactions in an attempt to profit from fluctuations in market value **Speculative attack, denoting precipitous acquisition of assets by previously inactive speculators **Speculative demand, a demand for financial assets that is not dictated by real transactions such as trade or financing **Speculative development, in real estate **Speculative grade, a grade of bond below investment grade, having higher risk, but typically pay higher yield than better quality bonds **Economic bubble, when assets trade at a price that far exceeds an asset's intrinsic value due to speculation

In linguistics

*Speculative mood, a grammatical mood found in some languages *Speculative grammarians, members of a school of grammarian philosophy known as Modism, active in Europe in the 13th and 14th centuries *''Speculative Grammarian'', a parody science journal

In philosophy

*Speculative philosophy, an aspect of Continental philosophy *Speculative realism, a movement in contemporary philosophy *Speculative reason, theoretical as opposed to practical thought

Other uses