1. happening or existing without the knowledge of someone specified —usually used with to <unbeknownst to us rumors were flying> (Merriam-Webster Online).

2. a word that pretentious pricks use to try to sound smarter than they actually are.
Unbeknownst to you, I have been fucking your sister for the past six months.

My dad has been sick for years, unbeknownst to the family.
by TCAcycle February 6, 2010
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A phrase used to point out anything obvious or oversaid.
Person #1: Hey, it's 2010 now!
Person #2: Unbeknownst to Speed.
by 398YY January 12, 2010
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When you miss the memo that you’re invited to something because you weren’t invited directly and the person that got asked on your behalf declines for you.
“Ashley isn’t coming?”
“No she didn’t wanna come.”
I wonder why. Is she mad at me?”
“I don’t know. “

Meanwhile Ashley’s just in her room wondering why she didn’t get invited to the party. Who’s mad? Unbeknownst beef vibes.
by Little Charlie Ray April 2, 2024
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When you miss the memo that you’re invited to something because you weren’t invited directly and the person that got asked on your behalf declines for you.
“Ashley isn’t coming?”
“No she didn’t wanna come.”
I wonder why. Is she mad at me?”
“I don’t know. “

Meanwhile Ashley’s just in her room wondering why she didn’t get invited to the party. Who’s mad? Unbeknownst beef vibes.
by Little Charlie Ray April 2, 2024
Get the Unbeknownst Beef mug.