rampant

adjective

ram·​pant ˈram-pənt 

 also  -ˌpant

1

a

: rearing upon the hind legs with forelegs extended

b

: standing on one hind foot with one foreleg raised above the other and the head in profile

—used of a heraldic animal

2

a

: marked by a menacing wildness, extravagance, or absence of restraint

rampant rumors

b

: profusely widespread

rampant weeds

rampantly adverb

Illustration of rampant

• a lion rampant

Synonyms

• runaway
• uncontrolled
• raw

Examples of rampant in a Sentence

a weed that's rampant in this area

the mayor promised to put a stop to the rampant crime that plagued the city

Recent Examples on the Web

The country faces rampant inflation, widespread shortages, and mass emigration, with over seven million Venezuelans fleeing abroad. —Amanda Castro, MSNBC Newsweek, 24 Oct. 2025

Suddenly, there is rampant competition for places between Emery’s No 10s. —Jacob Tanswell, New York Times, 23 Oct. 2025

In addition to rampant inflation, goods shortages, and a crumbling labor market, the liquid reserves held in Russia’s National Wealth Fund continue to decline precipitously, down to approximately $35 billion from $117 billion three years ago. —Jeffrey Sonnenfeld, Time, 22 Oct. 2025

According to Tas, duplication across stacks is rampant. —Sheryl Estrada, Fortune, 22 Oct. 2025

Word History

Etymology

Middle English rampaunt, rampand, borrowed from Anglo-French rampant "crawling, rampant (in heraldry)," from present participle of ramper "to climb, rear up on the hind legs, creep" — more at ramp entry 4

First Known Use

14th century, in the meaning defined at sense 1a

Phrases Containing rampant

• run rampant

Kids Definition

rampant

adjective

ram·​pant ˈram-pənt 

 also  -ˌpant

1

: standing on the hind legs like a horse rearing

2

: not checked in growth or spread

rumor ran rampant

rampantly adverb