Insusceptibilities is valid word

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

Definitions for INSUSCEPTIBILITIES in dictionary:

Similar words containing SUSCEPTIBILITIE without suffix s and without prefix in

susceptibilitie21 susceptibilities22 hypersusceptibilities35
Find what other words can be done using letters: "insusceptibilities"
https://scrabble-word.com/finder/insusceptibilities
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