What is the opposite of harmful?

Need antonyms for harmful? Here's a list of opposite words from our thesaurus that you can use instead.

Adjective
(harmless) Opposite of likely to injure or damage
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“It sounds so innocuous and harmless, as if it would barely cause a murmur or a ripple.”
Adjective
(advantageous) Opposite of likely to injure or damage
“Foods that tend to be high in beta-carotene are said to be beneficial to your diet.”
Adjective
Opposite of characteristic of great strength or forcefulness
“Ida had kept him awake while he drowsed his way up the old King's Trace in eastern Missouri, feverish and weak.”
Adjective
Opposite of exhibiting radioactivity
Adjective
Opposite of bringing about ruin or misfortune, especially from bad luck
Adjective
Opposite of defective in some way
“The finish on the body was perfect, and not a blemish in sight.”
Adjective
Opposite of fateful
Adjective
Opposite of disease-causing
Adjective
Opposite of evil or morally wrong
“Just as crimes were severely punished, statues of virtuous men publicly honored good deeds.”
Adjective
(informal) Opposite of extremely unpleasant or disagreeable in nature
“This unusual salad looks pretty on a plate and has a pleasant taste.”
Adjective
Opposite of characterized by tragic or disastrous events that usually cause despair or pessimism
Adjective
Opposite of seeking or intended to subvert an established system or institution
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