Synonyms of the word

noxious

• adj. Harmful; injurious.

baneful

• adj. Exceedingly harmful; causing harm, death, ruin.
• adj. Deadly or sinister.
• adj. Portending disaster.
• adj. (archaic) Poisonous.

corrupting

• v. present participle of corrupt.

deadly

• adj. (obsolete) Subject to death; mortal.
• adj. Causing death; lethal.
• adj. Aiming or willing to destroy; implacable; desperately hostile.
• adj. (by extension) Very accurate (of aiming with a bow, firearm, etc.).
• adj. (informal) Very boring.
• adj. (informal) Excellent, awesome, cool.
• adv. (obsolete) Fatally, mortally.
• adv. In a way which suggests death.
• adv. Extremely.

degrading

• v. present participle of degrade.
• adj. that degrades.

harmful

• adj. of a kind likely to be damaging; injurious.

pernicious

• adj. Causing much harm in a subtle way.
• adj. Causing death or injury; deadly.

pestilent

• adj. Highly injurious or destructive to life: deadly.
• adj. (informal) Annoying.
• adj. (archaic) Harmful to morals or public order.

toxic

• adj. (toxicology) Having a chemical nature that is harmful to health or lethal if consumed or otherwise entering…
• adj. (figuratively) negative, harmful.

unwholesome

• adj. Not wholesome; unfavorable to health; unhealthy.
• adj. Not sound; diseased; tainted; impaired; defective.
• adj. Indicating unsound health; characteristic of or suggesting an unsound condition, physical or mental; repulsive;…

vesicant

• adj. Causing blistering to the skin.
• n. Any material that causes blisters upon contact with the skin.

vesicatory

• adj. (medicine) Causing blistering.
• n. (medicine) An agent that causes blistering.