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1. Something impossible to measure.

2. Something impossible to understand because of being very mysterious or complicated.

1. Unfathomable ocean depths.
2. How life was created is unfathomable.
by Jafje September 16, 2007
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May 12 Word of the Day
When someone goes to the gym and spends 90% of the time on their phones scrolling through social media
Looks like its thumb day again for Jimmy with his usual routing... 3 sets of 5 snapchat selfies and 10 sets of scrolling through facebook until exhaustion
by Gary br April 02, 2017
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the word u heard in Love, Death and Robots.
really bad idea to look for translation in urbandictionary but surprisingly it has correct definition
Robot1: We checked their code - no creator signature.
Robot2: That's because they were made by an unfathomable deity that created them for no apparent reason, out of dust.
Robot2: Just kidding.
Robot2: They came from a very warm soup.
by isuckelbows January 20, 2020
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