Need another word for Poisonous? Use these synonyms of Poisonous from our thesaurus to say it differently.
Synonyms & Similar Words
toxic
venomous
deadly
lethal
fatal
hazardous
harmful
injurious
noxious
malignant
destructive
calamitous
baneful
pernicious
maleficent
malignant
virulent
corrosive
caustic
poisonous
toxicant
deleterious
detrimental
damaging
hurtful
mischievous
baleful
pestilent
pestilential
unhealthy
unwholesome
insidious
sinister
Meaning of Poisonous
The primary meaning of the word "poisonous" is relating to or containing poison.
Definitions
- Having the power to cause death, injury, or harm through being ingested, inhaled, or coming into contact with the body
- * Causing harm or injury through a gradual or insidious process
Etymology of Poisonous
The word "poisonous" comes from the Old French word "poison," which is derived from the Latin word "potio," meaning drink, and the suffix "-ous," which forms an adjective
The word has been used in the English language since the 14th century to describe substances that can cause harm or death
Example Uses
- The poisonous fumes from the chemical plant were a threat to the nearby residents
- * The doctor warned the patient about the poisonous side effects of the new medication
- * The poisonous snake's venom was potent enough to kill a human being within minutes
Antonyms & Near Antonyms
harmless
benign
safe
non-toxic
innocuous
mild
gentle
neutral
ineffective
impotent
weak
feeble
innocuous
non-lethal
non-deadly
non-hazardous
salubrious
wholesome
healthy
beneficial
curative
remedial
therapeutic