Word meaning

noxious

adjective · NOK-shus

What does noxious mean?

Noxious means harmful, poisonous, or very unpleasant.

Noxious in a sentence

“Noxious fumes forced workers out of the building.”

Synonyms for noxious

  • toxic
  • harmful
  • poisonous

Where does noxious come from?

From Latin noxa, "harm."

How to remember noxious

  • Say it out loud a few times: NOK-shus.
  • Write one sentence of your own using noxious, about something that happened to you today.
  • Quiz yourself tomorrow, in three days, and next week. Spaced reviews are what make new words stick.

More words worth knowing

  • coherent — logical and consistent; able to speak clearly.
  • elucidate — to make something clear; to explain.
  • remorse — deep regret or guilt for a wrong committed.
  • epiphany — a sudden and striking realization.
  • pristine — in its original condition; unspoiled; clean as new.
  • didactic — intended to teach, often in a heavy-handed way.

See today's word of the day →

Learn a new word every day

WordFren turns new vocabulary into a daily puzzle and The Daily 5 challenges, so words come back before you forget them.

Get WordFren free

Free on iPhone