Synonyms for conjecture

Noun

1. speculation, conjecture, hypothesis, possibility, theory

usage: 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"

2. guess, conjecture, supposition, surmise, surmisal, speculation, hypothesis, opinion, view

usage: a message expressing an opinion based on incomplete evidence

3. conjecture, reasoning, logical thinking, abstract thought

usage: reasoning that involves the formation of conclusions from incomplete evidence

Verb

1. speculate, theorize, theorise, conjecture, hypothesize, hypothesise, hypothecate, suppose, expect, anticipate

usage: to believe especially on uncertain or tentative grounds; "Scientists supposed that large dinosaurs lived in swamps"