Is 'assumation' a valid abstract noun of "assume" as:

"You have to make an assuming that x is a real number"

sounds incorrect?

How formal is 'assumation'?

  • No. The word is assumption. <<<--- that's the noun form.
    – Billy Kerr
    Commented May 31, 2022 at 12:53
  • @BillyKerr, I know that- but why are the question and answer downvoted? How are they unclear? Commented May 31, 2022 at 13:55
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    I don't know. I didn't downvote it. But perhaps because you linked to the Urban Dictionary website which is notorious for being inaccurate. It's better to use a proper dictionary website if you want to look up real words. You can use Oxford Learners Dictionaries for free,
    – Billy Kerr
    Commented May 31, 2022 at 14:44
  • @BillyKerr, oh, but I linked "assumation" (in the question) to the website and not the answer. Yes, I did that on purpose because for a minute, I was confused, and when I looked it up, Urban Dictionary came up, so I linked it. Yes, thanks, but it didn't mention 'assumption' is abstract, so didn't link it. Commented May 31, 2022 at 15:03
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    @TheAmateurCoder It was likely downvoted because your question can be answered with a simple dictionary search, which makes it off-topic for this site
    – gotube
    Commented Jun 6, 2022 at 17:32

1 Answer 1


I don't think assumation is valid, not formal either.

assuming is not the abstract noun of 'assume'.

assumption is the correct abstract noun of 'assume'.


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