Thesaurus

noxious

adjective

Synonyms & Antonyms of noxious

1 bad for the well-being of the body
  • mixing bleach and ammonia can cause noxious fumes that can seriously harm you

Synonyms for noxious

Words Related to noxious

Near Antonyms for noxious

Antonyms for noxious

3 causing intense displeasure, disgust, or resentment
  • the website reserved the right to remove and report hate speech and other noxious types of postings

Synonyms for noxious

Words Related to noxious

Near Antonyms for noxious

Antonyms for noxious

See the Dictionary Definition 

Frequently Asked Questions About noxious

How is the word noxious different from other adjectives like it?

Some common synonyms of noxious are baneful, deleterious, detrimental, and pernicious. While all these words mean "exceedingly harmful," noxious applies to what is both offensive and injurious to the health of a body or mind.

noxious chemical fumes

When is it sensible to use baneful instead of noxious?

The words baneful and noxious can be used in similar contexts, but baneful implies injury through poisoning or destroying.

the baneful notion that discipline destroys creativity

When would deleterious be a good substitute for noxious?

In some situations, the words deleterious and noxious are roughly equivalent. However, deleterious applies to what has an often unsuspected harmful effect.

a diet found to have deleterious effects

When could detrimental be used to replace noxious?

While the synonyms detrimental and noxious are close in meaning, detrimental implies obvious harmfulness to something specified.

the detrimental effects of excessive drinking

When might pernicious be a better fit than noxious?

The meanings of pernicious and noxious largely overlap; however, pernicious implies irreparable harm done through evil or insidious corrupting or undermining.

the claim that pornography has a pernicious effect on society

Keep scrolling for more

Learn More about noxious

Time Traveler for noxious

Time Traveler

The first known use of noxious was in the 15th century

See more words from the same century

Statistics for noxious

Last Updated

28 May 2020

Cite this Entry

“Noxious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/noxious. Accessed 5 Jun. 2020.

Keep scrolling for more

More from Merriam-Webster on noxious

Dictionary: Definition of noxious

Medical Dictionary: Definition of noxious

Spanish Central: Translation of noxious

Nglish: Translation of noxious for Spanish Speakers

Britannica English: Translation of noxious for Arabic Speakers

Comments on noxious

What made you want to look up noxious? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

See Definitions and Examples »

Get Word of the Day daily email!

Test Your Vocabulary

May 2020 Words of the Day Quiz

  • a blooming wisteria tree
  • Which is a synonym of exiguous?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Dictionary Devil

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!