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Definitions

nontoxic

ADJECTIVE
harmless
Synonyms
STRONGEST
gentle innocent innocuous inoffensive naive painless powerless simple
WEAK
controllable disarmed guiltless hurtless innoxious inoperative kind manageable nonirritating paper-tiger reliable safe sanitary soft softie sound sure trustworthy unobjectionable unoffensive
Antonyms
STRONGEST
bad damaging experienced harmful strong
WEAK
destructive evil hurtful injurious sinful wicked
ADJECTIVE
safe
Synonyms
STRONGEST
certain clear dependable harmless healthy pure reliable secure
STRONG
innocent sound
WEAK
checked competent decontaminated innocuous innoxious inoffensive neutralized nonpoisonous risk-free riskless tame tried-and-true trustworthy uninjurious unpolluted wholesome
Antonyms
STRONGEST
indefinite irresponsible uncertain undecided unfixed unreliable unsure
WEAK
dangerous exposed harmful incautious poisonous risky unguarded unprotected unsafe unthoughtful vulnerable
ADJECTIVE
unoffensive
Synonyms
WEAK
controllable disarmed gentle guiltless hurtless innocent innocuous innoxious inoffensive inoperative kind manageable naive nonirritating painless paper-tiger powerless reliable safe sanitary simple soft softie sound sure trustworthy unobjectionable

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.

There’s another nontoxic tactic in play: educating the public to report possible infestations and burn firewood where they buy it.

From Los Angeles Times • Jan. 10, 2026

Also in the home is a private gym, a sauna, nontoxic finishes, and a whole-house water filtration system, all tapping into wellness.

From MarketWatch • Dec. 31, 2025

Ceramic nonstick cookware: A popular new class of nonstick cookware, these candy-colored ceramic pans — such as the Instagram-famous Always Pan — are often marketed as nontoxic.

From Salon • Dec. 9, 2024

The splintered fluorine atoms, the researchers report, are safely sequestered by reacting them with potassium hydride in solution to form potassium fluoride, a nontoxic ingredient in toothpaste.

From Science Magazine • Nov. 20, 2024

The agent of his demise was wild potato, H. alpinum, the species plainly identified as nontoxic in Tanaina Plantlore.

From "Into the Wild" by Jon Krakauer

Vocabulary lists containing nontoxic

Florida's B.E.S.T. Common Prefixes: non-

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