I'm wondering because I'm looking at the Reactive Armor set from IC, along side the Heavy Armor skill Immovable. Does that skill count as a disabling effect?
disabling effects are crowd controls that disables your character completely. knockback/down, fear, stun are classified as hard cc. you have use break free to gain back your control.
snare/hindrance, immobilize/root, silence are soft cc meaning you have limited control over your character.