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 of rampant

• 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

Antje Lauer, a professor in the biology department at Cal State Bakersfield — who has also studied valley fever and the cocci virus for decades — said the focus shouldn’t be on rodents, but on the rampant construction taking place in Bakersfield. — Susanne Rust follow, Los Angeles Times, 24 Sep. 2026

The high-profile death in a Deep South state with a history of racial tension has sparked rampant speculation and suspicion. — ABC News, 23 Sep. 2026

Earlier in the week, Fazio had criticized Lamont, his Democratic opponent, for presiding over rampant corruption, primarily Diamantis’. — Kevin Rennie, Hartford Courant, 19 Sep. 2026

Leaders contented that in addition to geopolitical challenges, they have been impacted as luxury brands struggle to restore client loyalty following a period of rampant price hikes and even some lapses in quality. — Sofia Celeste, Footwear News, 18 Sep. 2026

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