harmful
Americanadjective
adjective
Other Word Forms
- harmfully adverb
- harmfulness noun
- quasi-harmful adjective
- quasi-harmfully adverb
- unharmful adjective
- unharmfully adverb
Etymology
Origin of harmful
First recorded before 1000; Middle English; Old English hearmful; harm, -ful
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"This does not automatically mean that harmful effects are occurring, but it highlights where further monitoring and targeted impact studies should be focused."
From Science Daily
He called the exchange “juvenile” and “not a reference to anything dark or harmful.”
The ban, which still needs parliamentary approval, is part of a raft of changes that include making company executives responsible for "illegal or harmful content" on their platforms.
From BBC
But these chemicals also find their way into the environment with potentially harmful consequences.
From BBC
When this happens, harmful bacteria and toxins can escape the gut and enter circulation.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
