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conjectural

[kuh n-jek-cher-uh l]
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adjective
  1. of, of the nature of, or involving conjecture; problematical: Theories about the extinction of dinosaurs are highly conjectural.
  2. given to making conjectures: a conjectural thinker.

Origin of conjectural

1545–55; < Latin conjectūrālis, equivalent to conjectūr(a) conjecture + -ālis -al1
Related formscon·jec·tur·al·ly, adverbun·con·jec·tur·al, adjective

Synonyms

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1. speculative, theoretical, doubtful.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for conjectural

Historical Examples

  • "Why—" Her eyes clouded; she pursed her lips over the conjectural annoyance.

    The Black Bag

    Louis Joseph Vance

  • As for ourselves, we merely indulge in a piece of conjectural criticism.

  • It is conjectural astronomy, conjectural natural philosophy, conjectural medicine.

    Timaeus

    Plato

  • Singer's conjectural reading is that; but and seems to me to be the word required.

  • But there is no need to resort to circumstantial or conjectural evidence.


British Dictionary definitions for conjectural

conjectural

adjective
  1. involving or inclined to conjecture
Derived Formsconjecturally, adverb
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 conjectural

adj.

1550s, from Latin conjecturalis "belonging to conjecture," from conjectura (see conjecture). Related: Conjecturally (mid-15c.).

Online Etymology Dictionary, © 2010 Douglas Harper

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