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 speculation was rampant all around the league when news of James’ decision broke, with rival executives wondering if this was a precursor to a trade request (James, remember, has a no-trade clause and could thus control any such move). —Sam Amick, New York Times, 30 June 2025

The rampant abuse of 9-year-old Owen started as early as June 2023 and continued up until his death Sept. 19, 2024 when police were called to the home for an unresponsive child, prosecutors said. —Kate Linderman, Kansas City Star, 27 June 2025

Rybnik is one of Poland’s largest producers of coal, and with that abundance has come rampant consumption. —Skylar Knight, Smithsonian Magazine, 27 June 2025

At a time of dehumanizing language and rampant violence against immigrants, Real Women steps up to its moment. —Marjorie García, Billboard, 26 June 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