Synonyms|139Antonyms|8|Broader|4Narrower|4Related|88
9
noxiousness(noun, venomousness, deadliness, toxicity)
6
injuriousness
6
noisomeness
3
balefulness
3
hurtfulness
3
perniciousness
2
air
2
destructiveness(noun, force, power, violence)
2
detriment
2
insalubriousness
2
mischievousness
2
unhealthiness
2
viciousness(violence, venomousness, deadliness, toxicity)
2
virulence
2
water
1
air pollution
1
badness
1
banefulness
1
bitchiness
1
contamination
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APASmart Define. (2015). harmfulness thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/harmfulness/thesaurus/synonyms
ChicagoSmart Define. 2015. "harmfulness thesaurus" https://smartdefine.org/harmfulness/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, harmfulness thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/harmfulness/thesaurus/synonyms>.
MLASmart Define. "harmfulness thesaurus" 13 April 2015. Web. 20 September 2026. <https://smartdefine.org/harmfulness/thesaurus/synonyms>