1. [ noun ] a message expressing an opinion based on incomplete evidence
Synonyms: guess surmise hypothesis supposition surmisal conjecture
Related terms: opinion divination think estimate speculate guess suspect surmise
2. [ noun ] a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
Synonyms: conjecture

"speculations about the outcome of the election" "he dismissed it as mere conjecture"

Related terms: hypothesis speculate
3. [ noun ] (business) an investment that is very risky but could yield great profits
Synonyms: venture

"he knew the stock was a speculation when he bought it"

Related terms: investment smart_money gamble pyramid venture
4. [ noun ] (psychology) continuous and profound contemplation or musing on a subject or series of subjects of a deep or abstruse nature
Synonyms: meditation

"the habit of meditation is the basis for all real knowledge"

Related terms: contemplation chew_over
Similar spelling:   speculative