Movement Speed cannot be modified to below base value
10% increased Movement Speed
Cannot be Stunned 
Unstoppable's two special modifiers (excluding the movement speed modifier) are mutually distinct and have completely separate effects. The first modifier prevents the player from being slowed below base speed. The speed of the player is the rate at which the player performs animations, and is modified by slowing and accelerating effects such as Chill, Freeze, Temporal ChainsTemporal ChainsSpell, AoE, Duration, Curse, Hex
Mana Cost: (16-33)
Cast Time: 0.50 secRequires Level 24Curses all enemies in an area, lowering their action speed and making other effects on them expire more slowly.Per 1% Quality:1Superior2Anomalous3Divergent0.5% increased Effect of CurseCurse has 2% increased Doom gain rate1% increased Curse DurationBase duration is (5-5.95) seconds
Cursed Normal and Magic Enemies have (20-29)% less Action Speed
Other effects on Cursed enemies expire 40% slower
50% less Effect of Curse against Players
Cursed Rare and Unique Enemies have (10-14)% less Action Speed
Curse gains 10 Doom per second if you Cast this Spell yourself
+(0-10) to radiusPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., and Acceleration Shrines, and Tailwind. Player speed is not related to or affected by modifiers to attack speed, cast speed, or movement speed. Therefore, so long as the player is not buffed by an Acceleration Shrine/Tailwind/Reverse-Chill with Winterweave/Slipstream/The Torrent's Reclamation/The Flow Untethered, players with this Ascendancy passive skill allocated will be completely unaffected by Chill, Freeze, or Temporal Chains.
The second special modifier prevents the player's movement speed from being modified below base value. The player's base movement speed is the speed at which the player walks without any movement speed modifiers. Therefore, if the player's movement speed would be reduced below this value, such as when standing on Tarred ground and even immobilizing effects such as Vaal Rain of ArrowsVaal Rain of ArrowsVaal, Attack, AoE, Projectile, Bow
Souls Per Use: 20 (N) /
Can Store 2 Use(s)
Cast Time: 1.00 secRequires Level 12Fires multiple arrows into the air, to land in multiple sequences after a delay, each starting at the targeted location and spreading outwards in all directions. Each arrow deals damage in an area around it. Half of the arrows will land directly on targets if there are targets in their range.Per 1% Quality:10.5% increased Area of EffectDeals (80-100.1)% of Base Attack Damage
Fires (17-21) additional Arrows
Fires 3 additional sequences of arrows
150% increased Effect of Maim
Maim on Hit
Can't be Evaded
CorruptedPlace into an item socket of the right colour to gain this skill. Right click to remove from a socket., it will instead be its base value.
- Mark_GGG (November 24, 2015). "Unstoppable question". Official Path of Exile Forums. Retrieved March 6, 2016.