prosperous

adjective

pros·​per·​ous ˈprä-sp(ə-)rəs How to pronounce prosperous (audio)
Synonyms of prosperousnext
1
2
a
: marked by success or economic well-being
b
: enjoying vigorous and healthy growth : flourishing
prosperously adverb
prosperousness noun

Examples of prosperous in a Sentence

The company had a prosperous year. He predicted a prosperous 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.
When Mose Norman, a prosperous Black farmer, attempted to cast his ballot, white mobs retaliated with brutal force. Debbie Deland, The Orlando Sentinel, 22 Feb. 2026 I'mPhaedra Trethan, wishing all who celebrate a happy and prosperous Year of the Horse. Phaedra Trethan, USA Today, 18 Feb. 2026 Throughout history, people have used technology to become more productive and prosperous without reducing the demand for human labor overall. Annie Lowrey, The Atlantic, 18 Feb. 2026 The backstory Greenwich, for the unfamiliar, is a prosperous city ensconced in Connecticut’s little panhandle. Charlie Hobbs, Condé Nast Traveler, 16 Feb. 2026 See All Example Sentences for prosperous

Word History

Etymology

Middle English, from Latin prosperus "agreeable to one's wishes, successful, (of omens) propitious" (going back to *pro-sparo-, from pro- pro- entry 2 + *sparo-, going back to Indo-European *sph1-ró- "thriving") + -ous -ous — more at speed entry 1

Note: An apparently traditional explanation is recorded by the fourth/fifth century grammarian Nonius Marcellus, namely, that prosperus was in origin from the phrase prō spērē "in conformity with one's hope" (spērē being taken as a variant of spē, ablative of spēs "hope"), though this may best be regarded as a folk etymology. It fails to account for the short e in prosperus.

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of prosperous was in the 15th century

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Cite this Entry

“Prosperous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/prosperous. Accessed 26 Feb. 2026.

Kids Definition

prosperous

adjective
pros·​per·​ous ˈpräs-p(ə-)rəs How to pronounce prosperous (audio)
1
: having or showing success or financial good fortune
2
: strong and healthy in growth
prosperously adverb

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