English dictionary, thesaurus, translations & etymology
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adj

odorless

OH-duh-luhs
adj
1
Having no smell at all.
"Carbon monoxide is odorless, which is what makes it so dangerous."

How to Use Odorless

Learner’s notes

In plain EnglishWithout any smell.

UK vs US

American spelling; British English writes this as "odourless".

Common pairings
odorless gas odorless and colorless
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Fill the Gap

Can you complete this real example?

Carbon monoxide is _____, which is what makes it so dangerous.

Etymology

From "odor" plus the suffix "-less", meaning "without".

Definitions: FreeDict original editorial