more poisonous

ADJECTIVE

harmful

Synonyms

WEAK

bad baleful baneful corrupt corruptive dangerous deadly deleterious destructive detrimental evil fatal hurtful infective lethal malicious malignant mephitic miasmatic morbid mortal nocuous noisome noxious peccant pernicious pestiferous pestilential septic toxic toxicant toxiferous venomous vicious viperous virulent

Antonyms

WEAK

aiding antidotal assisting curing healing helpful

ADJECTIVE

harmful

Synonyms

STRONGEST

dangerous deadly destructive fatal lethal noxious pernicious toxic venomous vicious virulent

WEAK

bad baleful baneful corrupt corruptive deleterious detrimental evil hurtful infective malicious malignant mephitic miasmatic morbid mortal nocuous noisome peccant pestiferous pestilential poison septic toxicant toxiferous viperous

Antonyms

STRONGEST

gentle good harmless healthful healthy helpful kind life-giving nice nonpoisonous wholesome

WEAK

benevolent non-toxic

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.

The air-clearing grown more poisonous with each exchange.

From Salon • May 8, 2023

This is important because oligomers are even more poisonous to brain cells than plaques are.

From Scientific American • Jan. 27, 2023

Citing the sanctity of the promise of a fair trial, the legal groups said they “can imagine nothing . . . more poisonous to this ancient ideal than William A. Brewer III’s behavior.”

From Washington Post • Sep. 18, 2019

He was sorry, he said, but he'd never worked in a more poisonous dressing room.

From The Guardian • Nov. 24, 2012

"Not the equal of the vintage you offered me the night of the tour-ney, but no more poisonous than most," he concluded, wiping his lips.

From "A Game of Thrones" by George R.R. Martin