noun which may take the genitive case particle 'no', noun
Describes the inherent toxicity of a substance, often used in medical or scientific contexts.
This mushroom is poisonous, so you must not eat it.
addictiveness
Refers to the addictive quality of substances, activities, or media, commonly used in everyday language.
このゲームは中毒性が高くて、やめられない。
This game is highly addictive; I can't stop playing.