prognosis

noun

prog·​no·​sis präg-ˈnō-səs How to pronounce prognosis (audio)
plural prognoses präg-ˈnō-ˌsēz How to pronounce prognosis (audio)
Synonyms of prognosisnext
1
: the prospect of recovery as anticipated from the usual course of disease or peculiarities of the case
2

Did you know?

Prognosis Is Not Just a Medical Term

With its prefix pro-, meaning "before", prognosis means basically "knowledge beforehand" of how a situation is likely to turn out. Prognosis was originally a strictly medical term, but it soon broadened to include predictions made by experts of all kinds. Thus, for example, economists are constantly offering prognoses (notice the irregular plural form) about where the economy is going, and climate scientists regularly prognosticate about how quickly the earth's atmosphere is warming.

Examples of prognosis in a Sentence

Right now, doctors say his prognosis is good. The president had a hopeful prognosis about the company's future.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
At the time, Arsenal outwardly downplayed the prognosis on the latter. James McNicholas, New York Times, 23 Jan. 2026 Given the alternatives, that’s not horrible news, and while that diagnosis may seem increasingly obvious, given recent elections, the potential prognosis and prescription’s fine print might surprise you. Jamie Holmes, Twin Cities, 22 Jan. 2026 For now, the prognosis is still looking somewhat grim. Victor Tangermann, Futurism, 21 Jan. 2026 The hospital had encouraged me to do so, as the prognosis looked bleak at the time, and maybe deep down a part of me really wanted my dad to be the one to reassure me that everything was going to be okay. Fiona Embleton, Glamour, 20 Jan. 2026 See All Example Sentences for prognosis

Word History

Etymology

Late Latin, from Greek prognōsis, literally, foreknowledge, from progignōskein to know before, from pro- + gignōskein to know — more at know

First Known Use

1655, in the meaning defined at sense 1

Time Traveler
The first known use of prognosis was in 1655

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Cite this Entry

“Prognosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prognosis. Accessed 31 Jan. 2026.

Kids Definition

prognosis

noun
prog·​no·​sis präg-ˈnō-səs How to pronounce prognosis (audio)
plural prognoses -ˈnō-ˌsēz How to pronounce prognosis (audio)
1
: the prospect of recovery of an individual who has a disease based on the usual course of the disease and the characteristics of the individual who is sick
2

Medical Definition

prognosis

noun
prog·​no·​sis präg-ˈnō-səs How to pronounce prognosis (audio)
plural prognoses -ˌsēz How to pronounce prognosis (audio)
1
: the act or art of foretelling the course of a disease
2
: the prospect of survival and recovery from a disease as anticipated from the usual course of that disease or indicated by special features of the case
the prognosis is poor because of the accompanying cardiovascular diseaseP. A. Mead et al.

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