speculation
名词 speculation:
a message expressing an opinion based on incomplete evidence
同义词:guess, conjecture, supposition, surmise, surmisal, hypothesis
a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
同义词:conjecture
an investment that is very risky but could yield great profits
同义词:venture
continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
同义词:meditation