rampant

adjective

• 1(especially of something unwelcome) flourishing or spreading unchecked:political violence was rampant rampant inflation
• unrestrained in action or performance:rampant sex
• (of a plant) lush in growth; luxuriant:a rich soil soon becomes home to rampant weeds

• 2 [usually postpositive] Heraldry (of an animal) represented standing on one hind foot with its forefeet in the air (typically in profile, facing the dexter side, with right hind foot and tail raised):two gold lions rampant