speculation

Meanings

• a message expressing an opinion based on incomplete evidence
• a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
  • "speculations about the outcome of the election"
• an investment that is very risky but could yield great profits
  • "he knew the stock was a speculation when he bought it"
• continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature

Synonyms

conjecture, guess, hypothesis, meditation, supposition, surmisal, surmise, venture