Inconsolability is valid Scrabble Word

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

Definitions for INCONSOLABILITY in dictionary:

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