- Accelerated-Aging Immortality
- Fast-Aging Immortality
- Immortal Growth
The user is able to age at a rapid rate until they reach maturity and they stop aging, thus they will live forever afterwards.
- May still be killed by certain means, such as violence.
- Immortal Slayer
- Immortality Negation/Immortality Removal
- Piccolo (Dragon Ball series)
- Merpeople (Siren 2018)
- Vampire/Human Hybrids (Twilight Saga)
- Renesmee Cullen
- Various Clones (Marvel Comics/DC Comics)
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