To conjecture is to make an educated guess rather than a stab in the dark; it involves piecing together bits of information to come to a plausible conclusion, as in “scientists conjecturing …

CONJECTURE definition: 1. a guess about something based on how it seems and not on proof: 2. to guess, based on the…. Learn more.

Opinion or judgment based on inconclusive or incomplete evidence; guesswork. 2. An opinion or conclusion based on guesswork: The commentators made various conjectures about the …

Your plan is based on (nothing more than) conjecture. Most of the book is conjecture, not fact. The criminal's motive remains a matter of conjecture. [=people can only guess about the …

Definition of conjecture noun from the Oxford Advanced Learner's Dictionary. [countable] an opinion or idea that is not based on definite knowledge and is formed by guessing synonym …

the making of a guess or inference, esp. with little evidence. Where the spectacular wedding was going to be held was a subject of much conjecture. the guess or inference so made. Her …

When you conjecture, you form an opinion or reach a conclusion on the basis of information that is not certain or complete.

Dec 13, 2025 · conjecture (countable and uncountable, plural conjectures) (formal) A statement or an idea which is unproven, but is thought to be true; a guess.

From Longman Dictionary of Contemporary English con‧jec‧ture1 /kənˈdʒektʃə $ -ər/ noun formal 1 [uncountable] when you form ideas or opinions without having very much information to base …

the forming or expressing of an opinion without sufficient proof:[uncountable] Do you know that for a fact or is it only conjecture? an opinion or theory so formed or expressed:[countable] Another …