Obsession (noun) تسلط، غلبہ کی سوچ، جنون

the state of being obsessed with someone or something.
Example: “she cared for him with a devotion bordering on obsession”
Noxious (adjective) موذی، جسمانی اور دماغی صحت کےلئے مہلک

harmful, poisonous, or very unpleasant.
Example: “they were overcome by the noxious fumes”