Thesaurus
Synonyms & Antonyms of harmful
causing or capable of causing harm
- DDT has been proven to be extremely harmful to the environment
Synonyms for harmful
Words Related to harmful
Near Antonyms for harmful
Antonyms for harmful
Keep scrolling for more
Learn More about harmful
Thesaurus Entries near harmful
See More Nearby EntriesCite this Entry
“Harmful.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/harmful. Accessed 17 May. 2021.
Style: MLA
MLA
Chicago
APA
Merriam-Webster
Chicago
APA
Merriam-Webster
Comments on harmful
What made you want to look up harmful? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words Used by Nabokov Quiz
-
- Choose the best definition or synonym for the word in bold: "There are some eructations that sound like cheers—at least, mine did." Lolita
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Spell words. Make bears.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Share harmful
Time Traveler for harmful
The first known use of harmful was in the 14th century
See more words from the same century