- the formation or expression of an opinion or theory without sufficient evidence for proof.
- an opinion or theory so formed or expressed; guess; speculation.
- Obsolete. the interpretation of signs or omens.
- to conclude or suppose from grounds or evidence insufficient to ensure reliability.
- to form conjectures.
Origin of conjecture
SynonymsSee more synonyms for conjecture on Thesaurus.com
Examples from the Web for conjecturing
The Squire had little trouble in conjecturing, however, that Ben was at the bottom of it.Paul Prescott's Charge
To what use it will next be put I have no pleasure in conjecturing.A Journey to the Western Isles of Scotland
But no needless time was spent in surmises and conjecturing.Three Boys in the Wild North Land
Egerton Ryerson Young
We must fall back upon history, and then go to conjecturing.In Defense of Harriet Shelley
Mark Twain (Samuel Clemens)
After I had spent nearly half an hour in this sort of conjecturing.The Boy Tar
- the formation of conclusions from incomplete evidence; guess
- the inference or conclusion so formed
- obsolete interpretation of occult signs
- to infer or arrive at (an opinion, conclusion, etc) from incomplete evidence
Word Origin and History for conjecturing
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.
early 15c., from conjecture (n.). In Middle English also with a parallel conjecte (n.), conjecten (v.). Related: Conjectured; conjecturing.