Reactiveness [noun]

● Nervousness

● Subtlety

● Sympathy

● Sense

● Feeling

● Awareness

● Susceptibility

● Consciousness

● Delicacy

● Sensation

● Acuteness

● Receptiveness

● Sensitiveness

● Reactivity

● Affectibility

● Impressionability

● Insensitivity

● Numbness

● Impassivity

● Apathy

● Unconsciousness

● Reactiveness

● Emotional

● Activate

● Activated

● Aeolipile

● Aerofoil

● Airfoil

● Aldehyde

● Alkali metal

● Alkaline-earth metal

● Alkene

● Amortization

● Antigen

● Arousal

● Atomic clock

● Atomic number 15

● Attentiveness

● Biasing

● Bidirectional

● Blanket

● Blanketed

● Buoyancy

● Calcium

● Campylobacter

● Carbene

● Cerium

● Cesium

● Compounding

● Compulsive

● Control

● Control surface

● Crucible

● Deactivate

● Dependence

● Dimmer

● Disciplining

● Distancing

● Electrolysis

● Europium

● Excited

● Exuberance

● Fibrosis

● Fluorine

● Function

● Habituation

● Ibert

● Immunoelectrophoresis

● Impulse

● Impulsive

● Inactive

● Inert

● Introspection

● Iodine

● Ketone

● Lanthanum

● Lifetime

● Lithium

● Magnesium

● Mean life

● Normal

● Oxygen

● Ozone

● Passivate

● Passivation

● Phosgene

● Phosphide

● Phosphorus

● Photosensitive

● Polytetrafluoroethylene

● Potassium

● Punchy

● Purging

● Reactionary

● Reactor

● Receptivity

● Recoil

● Reflex

● Regulation

● Responsiveness

● Ria

● Rocket

● Rubidium

● Satiation

● Sensitize

● Sensitized

● Sensitizing

● Sodium

● Solid-state

● Spike

● Strontium

● Suggestibility

● Surface

● Surfacing

● Tarnish

● Torsion

● Turn

● Unhindered

● Unstable

● Ununoctium

● Var