• synonyms


See more synonyms for conjecture on Thesaurus.com
  1. the formation or expression of an opinion or theory without sufficient evidence for proof.
  2. an opinion or theory so formed or expressed; guess; speculation.
  3. Obsolete. the interpretation of signs or omens.
Show More
verb (used with object), con·jec·tured, con·jec·tur·ing.
  1. to conclude or suppose from grounds or evidence insufficient to ensure reliability.
Show More
verb (used without object), con·jec·tured, con·jec·tur·ing.
  1. to form conjectures.
Show More

Origin of conjecture

1350–1400; (noun) Middle English < Latin conjectūra (< Middle French) inferring, reasoning, equivalent to conject(us) past participle of conjicere to throw together, form a conclusion (con- con- + -jicere, combining form of jacere to throw) + -ūra -ure; (v.) late Middle English conjecturen (< Middle French) < Late Latin conjecturāre, derivative of the noun
Related formscon·jec·tur·a·ble, adjectivecon·jec·tur·a·bly, adverbcon·jec·tur·er, nounmis·con·jec·ture, verb, mis·con·jec·tured, mis·con·jec·tur·ing; nounnon·con·jec·tur·a·ble, adjectivenon·con·jec·tur·a·bly, adverbpre·con·jec·ture, verb (used with object), pre·con·jec·tured, pre·con·jec·tur·ing.un·con·jec·tur·a·ble, adjectiveun·con·jec·tured, adjective


See more synonyms for on Thesaurus.com
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words


Examples from the Web for misconjecture

Historical Examples

  • Misconjecture, mis-kon-jek′tūr, n. a wrong conjecture or guess.

    Chambers's Twentieth Century Dictionary (part 2 of 4: E-M)


  • But do not misconjecture because this description sounds like a General Alarm that James was either lost or a dead one.

British Dictionary definitions for misconjecture


  1. the formation of conclusions from incomplete evidence; guess
  2. the inference or conclusion so formed
  3. obsolete interpretation of occult signs
Show More
  1. to infer or arrive at (an opinion, conclusion, etc) from incomplete evidence
Show More
Derived Formsconjecturable, adjectiveconjecturably, adverbconjecturer, noun

Word Origin

C14: from Latin conjectūra an assembling of facts, from conjicere to throw together, from jacere to throw
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for misconjecture



late 14c., "interpretation of signs and omens," from Old French conjecture "surmise, guess," or directly from Latin coniectura "conclusion, interpretation, guess, inference," literally "a casting together (of facts, etc.)," from coniectus, past participle of conicere "to throw together," from com- "together" (see com-) + iacere "to throw" (see jet (v.)). Sense of "forming of opinion without proof" is 1530s.

Show More



early 15c., from conjecture (n.). In Middle English also with a parallel conjecte (n.), conjecten (v.). Related: Conjectured; conjecturing.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper