Unfailingness is valid Scrabble Word

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

13 letters word
17 points in Scrabble
23 points in WWF

Definitions for UNFAILINGNESS in dictionary:

NOUN:

the state of being unfailing

ADJECTIVE:

reliable or constant
without error or fault

Words related to UNFAILINGNESS

unfailing13 unfailingnesses19

Words that contain UNFAILINGNESS

unfailingnesses19

Similar words containing FAILINGNES without suffix s and without prefix un

unfailingnesses19

Find what other words can be done using letters: "unfailingness"
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