ISEE/SSAT Vocabulary Builder›Words›N›noxious
ISEE/SSAThard
noxious
harmful or poisonous to living things
Synonyms
- harmful
- toxic
- poisonous
Antonyms
- harmless
- wholesome
- beneficial
noxious in a sentence
Noxious smoke drifted from the burning plastic and stung our eyes.
The workers left the room when a noxious vapor made them cough and feel dizzy.
Where it comes from
From Latin noxius, meaning 'harmful,' from noxa, meaning 'harm.'
Memory hook
NOXIOUS sounds like 'knocks us'; harmful fumes can knock us down.
Read it in context
- The Authority No Chart Showed Social Science