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noxious

8 synonyms and 1 antonym for noxious, grouped by meaning and by how common each one is.

Adj — Harmful or poisonous, especially to health.

Synonyms

Less common

Still standard English, but they carry more weight.

Rare, literary or technical

Precise, but they will stand out — check the sense before using one.

Antonyms

How to use noxious

The word patterns that sound natural to a native speaker.

noxious fumes noxious gas noxious substance

Etymology

From Latin noxius, "hurtful," from noxa, "harm."

Full origin of noxious →

Frequently asked questions

What does “noxious” mean?
The word “noxious” means harmful or poisonous, especially to health. In plain terms, something toxic or damaging, usually describing fumes, substances, or gases.
How do you pronounce “noxious”?
“Noxious” is pronounced NOK-shuhs (/ˈnɑkʃəs/ in IPA).
How do you use “noxious” in a sentence?
Here is “noxious” used in a sentence: “The factory released noxious fumes into the air.”
What part of speech is “noxious”?
“Noxious” is an adjective.
Where does the word “noxious” come from?
The word “noxious” comes from Latin. From Latin noxius, "hurtful," from noxa, "harm.".

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Synonyms and antonyms from Wiktionary, CC BY-SA.