speculation

(n) a message expressing an opinion based on incomplete evidence guess, supposition, surmisal, surmise, conjecture, hypothesis,
(n) a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
- speculations about the outcome of the election
- he dismissed it as mere conjecture
conjecture,
(n) an investment that is very risky but could yield great profits
- he knew the stock was a speculation when he bought it
venture,
(n) continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
- the habit of meditation is the basis for all real knowledge
meditation,

guess supposition surmisal surmise conjecture hypothesis venture meditation

speculative