"Immarcescibly" Natural Recordings by Native Speakers
The word "immarcescibly" means permanently or irreversibly; without the power of recovery or return to a previous state. It is used to describe something that has become permanent or lasting, and cannot be undone or reversed.
Immature refers to something or someone that lacks maturity or development, often due to being inexperienced, youthful, or unable to behave responsibly. An immature person may act impulsive, reckless, or inconsiderate, lacking the wisdom, judgment, and self-control that comes with maturity.