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Definition of conjecture

conjecture

/kənˈdʒɛk.tʃɚ/
con · jec · ture

Adverb:conjecturally
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Plural:conjectures
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Adjective:conjectural
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Past Simple:conjectured
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Past Participle:conjectured
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Present Participle:conjecturing
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conjecture Lexical Profile

conjecture Game Scores & Validity

• noun

1

An opinion or conclusion formed on the basis of incomplete information; a guess or speculation.

Example

"Without concrete evidence from the archaeological site, any claims about the ancient society's collapse remain pure conjecture."


2

In mathematics, an unproven proposition or statement that appears to be true based on preliminary evidence or pattern analysis.

Example

"The mathematician spent decades attempting to prove a famous conjecture regarding the distribution of prime numbers."

Synonyms
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Antonyms
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• verb

1

To form an opinion or supposition about something on the basis of incomplete or presumptive information.

Example

"Historians have long conjectured that the unfinished manuscript was written during the author's final years in exile."

Synonyms
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Antonyms
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• Rhymes for conjecture

Word Origin & Etymology

Borrowed in the late 14th century from Old French 'conjecture' or directly from Latin 'coniectura', derived from 'conicere' meaning 'to throw together' (from 'com-' meaning 'together' and 'iacere' meaning 'to throw').

Cite this Entry


Wordmom. (2026). Definition of Conjecture. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/conjecture
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