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

Improving our communication — sharing important information in a timely manner, supporting the manager in creating clear direction between departments are steps needed to unify our city and have a prosperous future for North Miami Beach. — Miami Herald Staff, Miami Herald, 23 Sep. 2026

Trump will contend that destroying Iran's nuclear program and securing military interests in Greenland will result in a safer and more prosperous world, the official said. — Miles J. Herszenhorn, USA Today, 22 Sep. 2026

The country is almost certainly dirtier, poorer, less prosperous, and in some ways less safe than in 2024. — Adam Serwer, The Atlantic, 17 Sep. 2026

Unless this course is reversed soon, rebuilding the island as a stable, prosperous, and democratic place could become virtually impossible. — Will Freeman, Foreign Affairs, 17 Sep. 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