What is the meaning of Rampant?

Rearing on both hind legs with the forelegs extended.

Rearing up, especially on its hind leg(s), with a foreleg raised and in profile.

Tilted, said of an arch with one side higher than the other, or a vault whose two abutments are located on an inclined plane.

Unrestrained or unchecked, usually in a negative manner.

Rife, or occurring widely, frequently or menacingly.

Rampantly.

present participle of ramper

rampant

tilted

humbly inclined

extending over the ground rather than climbing upward

base; common

stranded on the ground as opposed to flying staff

rampant

rampant

Source: wiktionary.org