Extemporaneities is valid word

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

Definitions for EXTEMPORANEITIES in dictionary:

Similar words containing TEMPORANEITIE without suffix s and without prefix ex

extemporaneitie26 contemporaneities23
Find what other words can be done using letters: "extemporaneities"
https://scrabble-word.com/finder/extemporaneities
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