1. [ noun ] a hypothesis that has been formed by speculating or conjecturing (usually with little hard evidence)
Synonyms: speculation

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

Related terms: hypothesis speculate
2. [ verb ] to believe especially on uncertain or tentative grounds
Synonyms: suppose speculate hypothesize theorize hypothecate hypothesise theorise

: "Scientists supposed that large dinosaurs lived in swamps."

Related terms: expect explicate reconstruct hypothesis theory hypothesis guess speculation theorist theorization supposition speculator
3. [ noun ] a message expressing an opinion based on incomplete evidence
Synonyms: guess speculation surmise hypothesis surmisal supposition
Related terms: opinion divination think estimate speculate guess suspect surmise
4. [ noun ] (psychology) reasoning that involves the formation of conclusions from incomplete evidence
Related terms: reasoning theorization supposition speculate
Similar spelling:   conjectural