Daily Word Box

Install Daily Word Box: tap Share, then Add to Home Screen.

Word

toxic

adjective B2
UK /ˈtɒk.sɪk/
US /ˈtɑk.sɪk/

Meanings

adjective

Poisonous or containing substances that can cause illness or death.

toxic: Poisonous or containing substances that can cause illness or death.
adjective

Very harmful to the environment or living things, often due to pollution or chemicals.

toxic: Very harmful to the environment or living things, often due to pollution or chemicals.
adjective

Emotionally damaging; creating a hostile, stressful, or unhealthy social situation.

toxic: Emotionally damaging; creating a hostile, stressful, or unhealthy social situation.

Definition

Toxic means poisonous or very harmful.

Toxic describes something that can poison or seriously harm people, animals, or the environment. It can refer to substances like chemicals or gases, or to situations and relationships that are damaging in a non-physical way. In everyday English, it often describes behavior or communication that creates stress, fear, or conflict.

Examples

  • The cleaner gave off a toxic smell, so I opened the windows immediately.
  • You should avoid mixing those products because the gas can become toxic.
  • He left the group chat when the conversation turned toxic every day.
  • Their team culture became toxic after constant blaming and public criticism.

Common mistake

Learners sometimes use toxic for mild dislike (e.g., 'toxic food' meaning 'tastes bad') instead of for something genuinely harmful or damaging.