Sumptuosity is valid Scrabble Word

Is sumptuosity a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words YES
Is sumptuosity valid Words with Friends?
Words with Friends YES

Definitions for SUMPTUOSITY in dictionary:

Words related to SUMPTUOSITY

sumptuosities17

Similar words containing SUMPTUOS without suffix ity

sumptuosities17
Find what other words can be done using letters: "sumptuosity"
https://scrabble-word.com/finder/sumptuosity
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