toxic
The word describes a slow, pervasive poisoning rather than a sudden shock. When applied to chemicals, it suggests a biological failure or contamination. When applied to people or environments, it suggests a psychological erosion where the atmosphere becomes suffocating and destructive over time. In modern social contexts, it is frequently used to describe relationships or workplaces where manipulation, negativity, and emotional abuse are normalized. It carries a stronger weight than "unpleasant" or "difficult," implying that the situation is actively damaging to one's mental health.
Meanings
Containing poisonous substances that can cause death or illness.
"The waste from the chemical plant was highly toxic."
Producing a harmful, oppressive, or maladaptive effect on a person or environment.
"He left the company because the corporate culture had become toxic."