Semi-Immortality

"Fifty years have passed... but I do not age. Time has lost its effect on me."

- Jack (Samurai Jack)

The power not to age. Sub-power of Immortality.

Also Called

 * Agelessness
 * Aging Immunity
 * Biological Immortality
 * Eternal Youth
 * Half-Immortality
 * Timeless/Unaging Body

Capabilities
Users of this ability never age, and as a result, they stay young forever or at least never suffer the ravages of aging. Because of this, the user will always be at their physical prime. The user will also be immune to aging abilities, such as Age Acceleration or Reversal.

Applications

 * Immunity to age-based powers.

Associations

 * Age Manipulation
 * Age Negation
 * Bionic Physiology
 * Decelerated Aging
 * Immortality
 * Multiple Lives
 * Old Prime
 * Regenerative Healing Factor
 * Telomere Regeneration
 * Temporal Lock

Limitations

 * User is still vulnerable to everything else that would affect other beings, from disease to mortal wounds.
 * Users may stop aging only after they reach a certain point.
 * Depending on what that point is, user may never reach adulthood.

Trivia
Unlike other forms of Immortality, this version is really hard to detect whenever it comes to physiological science. To basically put it, users of this power are still mortal, but except their bodies don't age at all, making this form of immortality half-baked in terms of functionality.

Known Users
See Also: The Ageless.

Comics/Cartoons
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 * Princess Bubblegum (Adventure Time)
 * Yakko, Wakko and Dot (Animaniacs)
 * Anodites (Ben 10)
 * Verdona Tennyson (Ben 10)
 * Ectonurites (Ben 10)
 * Ghost Freak (Ben 10)
 * Professor Paradox (Ben 10)
 * Black Adam (DC Comics)
 * Raven (DC Comics)
 * Shazam (DC Comics)
 * Kryptonians (DC Comics); via yellow sun radiation
 * Daxamites (DC Comics); via yellow sun radiation
 * Wonder Woman (DC Comics)
 * Jägermonster (Girl Genius)
 * Ben Grimm/Thing (Marvel Comics)
 * Olympians (Marvel Comics)
 * Skips (Regular Show)
 * Jack (Samurai Jack)
 * The Guardian (Samurai Jack)
 * The Ones/Force Wielders (Star Wars)
 * Gems (Steven Universe)
 * Darwin Watterson (The Amazing World of Gumball)
 * Gumball Watterson (The Amazing World of Gumball)
 * Timmy Turner and everyone else on Earth (The Fairly OddParents)
 * Steven Rogers (Ultimate Marvel)
 * Jenny Sparks (Wildstorm/DC Comics)
 * Superboy (Young Justice)

Live Television/Movies

 * Peter Pan (Disney's Peter Pan)
 * Peter Pan (Peter Pan 2003)
 * Stanton Parish (Alphas)
 * Drogyn (Angel)
 * Lorien (Babylon 5)
 * Guardians (Rise of the Guardians)
 * Some Witches (Charmed)
 * Some Demons and Warlocks (Charmed)
 * Whitelighters and Elders (Charmed)
 * Darklighters (Charmed)
 * Cupids (Charmed)
 * Mermaids (Charmed)
 * Vera Moray/Granny Rags (Dishonored)
 * Rory Williams (Doctor Who); as an Auton
 * The Time Lords (Doctor Who)
 * The Doctor
 * Romana
 * The Master
 * John Hancock (Hancock)
 * Mary Embrey (Hancock)
 * Adam Monroe (Heroes)
 * Experiments (Lilo & Stitch)
 * Stitch/626
 * Elves (Lord of The Rings)
 * Gandalf (Lord of The Rings)
 * Gollum (Lord of The Rings)
 * Ben Linus (Lost)
 * Hugo "Hurley" Reyes (Lost)
 * Jacob (Lost)
 * The Man in Black (Lost)
 * Mother (Lost)
 * Richard Alpert (Lost)
 * John Amsterdam (New Amsterdam)
 * Rumplestiltskin (Once Upon a Time)
 * Angels (Supernatural)
 * Archangels (Supernatural)
 * Demons (Supernatural)
 * Alphas (Supernatural)
 * Leviathans (Supernatural)
 * Doc Benton (Supernatural)
 * Horseaman (Supernatural)
 * Deities (Supernatural)
 * Wizard of OZ (Supernatural)
 * Powerful Witches (Supernatural)
 * Wendigos (Supernatural)
 * Phoenixs (Supernatural)
 * Golems (Supernatural)
 * Djinn (Supernatural)
 * Nachzehrer (Supernatural)
 * Original Vampire (The Vampire Diaries/The Originals)
 * Enhanced Original Vampire (The Vampire Diaries/The Originals)
 * The Beast/Upgraded Original Vampire (The Vampire Diaries/The Originals)
 * Vampires (The Vampire Diaries/The Originals)
 * Original Hybrid (The Vampire Diaries/The Originals)
 * Hybrids (The Vampire Diaries/The Originals)
 * Powerful Witches (The Vampire Diaries/The Originals); via Spell Casting
 * Witches (Witches of East End)
 * Warlocks (Witches of East End)
 * The Mandragora (Witches of East End)
 * Werewolf (Teen Wolf); via Regenerative Healing Factor
 * Werewolf (Underworld)
 * Lycans (Underworld)
 * Vampires (Underworld)
 * Alexander Corvinus (Underworld)
 * Sylphs (The Spiderwick Chronicles)
 * Io (Clash of The Titans 2010)
 * Henry Morgan (Forever)
 * Adaline Bowman (The Age of Adaline)}}

Literature
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 * Slenderman (Creepypasta)
 * Hunters of Artemis (Percy Jackson Books)
 * Peter Pan (Peter Pan)
 * Sorcerers (Skulduggery Pleasant)
 * The Young Guardians (The Young Guardians)
 * Elves (Tolkien)
 * Dark One (The Wheel of Time)
 * Dragon Riders (Inheritance Cycle)
 * Vampire (Shadowhunter Chronicles)
 * Warlocks (Shadowhunter Chronicles)
 * Great A'Tuin (Discworld)
 * Morla (The Neverending Story)

Video Games

 * Demigods (Asura's Wrath)
 * Chek Summoners (Breath of Fire IV)
 * Abbess
 * Brain (Skylanders)
 * Dog (Fable II/III)
 * Gabriel Belmont/Alucard (Castlevania Lords of Shadows 2)
 * Trevor Belmont/Alucard (Castlevania Lords of Shadows 2)
 * Shelke the Transparent (Dirge of Cerberus)
 * Nyx (Fire Emblem Fates)
 * Rollermines (Half-Life 2 Series)
 * Ruby (Lunar: Eternal Blue)
 * Nall (Lunar: Silver Star Story)
 * Quan Chi (Mortal Kombat)
 * Shao Kahn (Mortal Kombat)
 * Alex Mercer (Prototype/Prototype 2)
 * James Heller (Prototype 2)
 * Elizabeth Greene (Prototype)
 * Aldra (Queen's Blade)
 * Albert Wesker (Resident Evil); After he is revived by the Prototype Virus his aging process seems to have stopped altogether.
 * Shadow the Hedgehog (Sonic the Hedgehog)
 * Judd (Splatoon)
 * Peter Pan (Valkyrie Crusade)
 * Anomalocaris (Valkyrie Crusade)
 * The Dryad (Terraria)
 * Kokiri People (The Legend of Zelda series)

Mythology/Folklore

 * Vampires (Mythology/Folklore)
 * Viking Deities (Norse Mythology)
 * Werewolves (Mythology/Folklore)

Other

 * Malachite (Channel Awesome - Suburban Knights)
 * Merlin (Stupid Mario Brothers)
 * Nox Decious (Stupid Mario Brothers)
 * SCP-1810 - Mr. Pierrot (SCP Foundation)
 * BLU Pyrogun (TF2 Freak)
 * Bluster Blaster Sentries (TF2 Freak)
 * Commander Bot (TF2 Freak)
 * Cremapyro (TF2 Freak)
 * CyborPyro (TF2 Freak)
 * Deed Goy (TF2 Freak)
 * Pyrogun (TF2 Freak)
 * Team Killer (TF2 Freak)}}

Known Objects

 * Ring of Winter (Forgotten Realms)

Known Locations

 * Neverland (Peter Pan)