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

What is once in a lifetime in some places, once a generation in other places, occasional in the most prosperous of programs, has become a baseline achievement for the men’s and women’s basketball teams in Storrs. —Dom Amore, Hartford Courant, 30 Mar. 2026

But where Grosz targets only the vain and prosperous, Lapid puts his struggling bohemians at the heart of corruption. —Richard Brody, New Yorker, 27 Mar. 2026

Location of a major firm or factory is rarely enough to catalyze sustainable and prosperous communities. —Christopher Briem, The Conversation, 25 Mar. 2026

The convergence of Abundance centrists and conservative environmentalists would seem to belie the ACC’s assertion that the environmental movement is dominated by radicals who would rather sabotage the American economy than accept any of the compromises necessary to achieve a prosperous future. —Gaby Del Valle, Harpers Magazine, 24 Mar. 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