Meaning & use
unapproved
Last updated
Not officially sanctioned, authorized, or approved.
See it in a sentence
The clinic was reportedly using an unapproved drug in its trials.
Unapproved modifications to the vehicle voided the manufacturer's warranty.
A note on using this word
Frequently used in regulatory, medical, and legal contexts to flag something lacking official sign-off.
Words with a similar meaning
unauthorizedunsanctioned
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
approvedauthorized
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