rampant has definitions from the field of heraldry
1
[ adjective ] unrestrained and violent

Examples

"rampant aggression"

Used in print

(Mignon G. Eberhart, The Cup, the Blade...)

It was a long , low room , like a root_cellar , for it was banked up with soil , and vines had run rampant over that , too .

Related terms

uncontrolled

2
[ adjective ] (heraldry) rearing on left hind leg with forelegs elevated and head usually in profile

Synonyms

rearing

Examples

"a lion rampant"

Related terms

heraldry erect

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