noxious
Harmful or poisonous, especially a gas or smell.
noxious in a sentence
- A noxious green smoke drifted up from the potion, and everyone pinched their noses.
- Old cars pumped out noxious fumes that made the city air harmful to breathe.
Try an 11+ style question
Verbal reasoning papers often ask about a word like this.
Which word is closest in meaning to noxious?
- Aharmful
- Bsafe
- Charmless
- Dclean
Show the answer
A: harmful. The other three mean the opposite of noxious.
Which word is most nearly opposite in meaning to noxious?
- Anasty
- Bharmless
- Cpoisonous
- Dharmful
Show the answer
B: harmless. The other three mean nearly the same as noxious.
Words that mean something similar
harmful, poisonous, nasty
Words that mean the opposite
harmless, safe, clean
More words about weather & nature
- overcast: Covered with grey cloud and dull.
- parched: Extremely dry, or very thirsty.
- pungent: Having a very strong, sharp smell or taste.
- quench: To stop your thirst by drinking, or to put out a fire.
- ripple: A tiny wave that moves across the surface of water.
- sodden: Completely soaked through with water.
- sow: To plant seeds in the ground so they can grow.
- stagnant: Not moving or flowing, and often smelly and stale.
More words to explore
Sitting the 11+ in Kent, Medway or Buckinghamshire?
Plain-English guides to each test, from the councils’ own pages: Kent Test · Medway Test · Bucks Secondary Transfer Test