What does "toxic" mean?
Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.
Toxic
/ˈtɑk.sɪk/ adj
adj ·Moderate ·High school level
Meaning at a glance
- Primary sense: Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.
- Grammar: toxic is listed as adj.
- Nearest alternatives: antibiotic, antiseptic, baleful, baneful.
- Useful contrasts: environmentally friendly, animal-safe, antitoxic.
- Usage evidence: You shouldn't sleep with a coal stove on because it releases a very toxic gas called carbon monoxide. Sleeping with a coal stove running may result in death.
How to use "toxic"
- Start with the primary definition, then check the part of speech before placing the word in a sentence.
- Compare nearby synonyms to make sure "toxic" carries the exact meaning, tone, and strength you need.
- Use the example sentence as a context check. If your sentence uses the word differently, confirm that the grammar still fits.
Meaning check
- Does the word fit the sentence's grammar?
- Does it match the intended tone rather than only the dictionary definition?
- Would a simpler synonym be clearer for the reader?
- Is there enough surrounding context to prevent ambiguity?
Source and review context
This entry combines structured lexical data with WordToolSet review checks. Definitions, examples, synonyms, and usage notes may come from different source tables, so the page is designed to show evidence from more than one angle before you rely on "toxic" in a final draft.
If a word has several senses, prefer the sense that matches your sentence's grammar and surrounding context. A correct definition can still be the wrong choice when the sentence needs a different register, emphasis, or level of specificity.
Before you rely on this definition
Read the first definition as a starting point, then check the example, synonyms, and part of speech before treating "toxic" as the right word for your sentence.
If your draft is formal, technical, persuasive, or sensitive, compare "toxic" with a nearby alternative so the final choice matches both meaning and reader expectation.
Compare nearby meanings
- Use synonyms when you need a softer, stronger, simpler, or more specific word.
- Use antonyms to check the boundary of the meaning and avoid accidental contrast.
- Use the example sentence to confirm the word behaves naturally in context.
- Keep the original wording when a replacement adds complexity without improving precision.
Definition decision workflow
1. Identify the role
Check whether "toxic" is acting as adj in your sentence. A definition is only useful when the grammar matches the way the word is being used.
2. Test the nearest option
Compare it with "antibiotic" and other nearby choices to see whether the sentence needs a softer, stronger, or more familiar word.
3. Confirm with context
Use the example sentence below as an evidence check, then read your own sentence out loud to catch tone or rhythm problems.
Review note: Definition pages are checked for source coverage, sentence evidence, synonym support, and editorial insight before they are treated as approval-ready pages. If the evidence is too thin, the page remains available to users but is kept out of the approval-facing indexed inventory.
Final meaning check
Before publishing a sentence with "toxic", ask whether the word helps the reader understand the idea faster. A precise word should reduce confusion, not simply make the sentence look more polished.
When the definition, synonym evidence, and example context point in the same direction, the word is usually a safer choice. When they conflict, revise the sentence or choose a clearer alternative.
Definitions
Adjective
- 1 Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering into the body in sufficient quantities.
"Tobacco smoke contains many toxic substances."
- 2 Appearing grossly unwell; characterised by serious, potentially life-threatening compromise in the respiratory, circulatory or other body systems.
"The child appeared toxic on arrival at the hospital."
- 3 Severely negative or harmful. figuratively
"a toxic environment that promoted bullying"
- 4 Of a person, hateful or strongly antipathetic. figuratively
"It is not good to be around toxic people."
Adjective
- 1 of or relating to or caused by a toxin or poison wordnet
Antonyms
Example
"You shouldn't sleep with a coal stove on because it releases a very toxic gas called carbon monoxide. Sleeping with a coal stove running may result in death."
Common questions
What is a synonym for "toxic"?
Common synonyms include: antibiotic, antiseptic, baleful, baneful, cacodyl, cancerous.
How do you use "toxic" in a sentence?
You shouldn't sleep with a coal stove on because it releases a very toxic gas called carbon monoxide. Sleeping with a coal stove running may result in death.
How do you pronounce "toxic"?
Pronounced /ˈtɑk.sɪk/.
Etymology
Borrowed from French toxique, from Late Latin toxicus (“poisoned”), from Latin toxicum (“poison”), from Ancient Greek τοξικόν (toxikón) [φάρμακον (phármakon)] ("poison for use on arrows"), from τοξικός (toxikós, “pertaining to arrows or archery”), from τόξον (tóxon, “bow”).