Meaning & use
Unknow
Last updated
To cease to know or be unable to forget something once it has been learned.
See it in a sentence
Once you've seen the footage, you can't unknow what happened.
There's no way to unknow a secret once someone has told you.
A note on using this word
"Unknow" is a niche but increasingly used verb, almost always in the negative construction "can't unknow," describing knowledge that cannot be undone.
Words with a similar meaning
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Words with an opposite meaning
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