Rampant means wild or out of control. Unruly children might run rampant at the supermarket, knocking cereal boxes off shelves and thoroughly annoying the customers.

If you're running rampant, you're on a rampage. Both come from the French word ramper meaning "to climb, creep" like an animal on hind legs, paws in climbing-mode, or like wild plants such as the kudzu that ran rampant over an old barn until the entire thing was covered. There can also be rampant wildfires that destroy houses in the Southwest, or robots that run rampant in the lab after the janitor accidentally sets them free.

Definitions of rampant
  1. adjective
    occurring or increasing in an unrestrained way
    rampant aggression”
    synonyms: epidemic
    not being under control; out of control
  2. adjective
    rearing on left hind leg with forelegs elevated and head usually in profile
    “a lion rampant
    synonyms: rearing
    erect, upright, vertical
    upright in position or posture
  3. adjective
    (of a plant) having a lush and unchecked growth
    “a rampant growth of weeds”
    present in great quantity
Word Family