verb prog·nos·ti·cate \ präg-ˈnä-stə-ˌkāt \
|Updated on: 28 Jul 2018

Definition of prognosticate

prognosticated; prognosticating
1 : to foretell from signs or symptoms : predict
2 : to give an indication of in advance : foreshadow


play \präg-ˈnä-stə-ˌkā-tiv\ adjective


play \präg-ˈnä-stə-ˌkā-tər\ noun

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Examples of prognosticate in a Sentence

  1. using current trends to prognosticate what the workplace of the future will be like

Recent Examples of prognosticate from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prognosticate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

Prognosticate, which comes from the Greek prognōstikos (foretelling), first appeared in English during the 15th century. Since that time, prognosticate has been connected with things that give omens or warnings of events to come and with people who can prophesy or predict the future by such signs. Shakespeare used the prophesy sense of prognosticate in the sonnet that begins Not from the stars do I my judgement pluck:

"From thine eyes my knowledge I derive,
And constant stars in them I read such art
...of thee this I prognosticate,
Thy end is truth's and beauty's doom and date."

First Known Use of prognosticate

15th century

in the meaning defined at sense 1

See Words from the same year
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Synonym Discussion of prognosticate

foretell, predict, forecast, prophesy, prognosticate mean to tell beforehand. foretell applies to the telling of the coming of a future event by any procedure or any source of information.
    • seers foretold the calamity
predict commonly implies inference from facts or accepted laws of nature.
    • astronomers predicted an eclipse
forecast adds the implication of anticipating eventualities and differs from predict in being usually concerned with probabilities rather than certainties.
    • forecast snow
prophesy connotes inspired or mystic knowledge of the future especially as the fulfilling of divine threats or promises.
    • prophesying a new messiah
prognosticate is used less often than the other words; it may suggest learned or skilled interpretation, but more often it is simply a colorful substitute for predict or prophesy.
    • prognosticating the future

Medical Dictionary


transitive verb prog·nos·ti·cate \ präg-ˈnäs-tə-ˌkāt \

medical Definition of prognosticate

prognosticated; prognosticating
: to make a prognosis about the probable outcome of


play \-ˌnäs-tə-ˈkā-shən\ noun

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resembling the blue of the sky

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