prosperous

adjective

pros·​per·​ous ˈprä-sp(ə-)rəs 

1

: auspicious, favorable

2

a

: marked by success or economic well-being

b

: enjoying vigorous and healthy growth : flourishing

prosperously adverb

prosperousness noun

Synonyms of prosperous

• thriving
• prospering
• successful
• wealthy
• golden
• booming

Examples of prosperous in a Sentence

The company had a prosperous year.

He predicted a prosperous future.

Recent Examples on the Web

As joint capital of the Austro-Hungarian Empire from 1873 to 1918, Budapest was one of the liveliest, most cultured, and prosperous cities in Europe; that golden era saw the construction of grand boulevards and numerous splendid buildings. — Condé Nast, Condé Nast Traveler, 4 Aug. 2026

The good news is that Venus in Libra can improve professional visibility, making negotiations and professional opportunities all the more graceful and prosperous. — Valerie Mesa, PEOPLE, 1 Aug. 2026

China has a significant, prosperous middle class and a comparatively high-performing economy. — Frank Lavin, Forbes.com, 27 July 2026

And that’s to be the commissioner of a major, growing and prosperous professional sports league. — Candace Buckner, New York Times, 27 July 2026

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

Kids Definition

prosperous

adjective

pros·​per·​ous ˈpräs-p(ə-)rəs 

1

: having or showing success or financial good fortune

2

: strong and healthy in growth

prosperously adverb