Unfrivolous is valid Scrabble Word

Is unfrivolous a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is unfrivolous valid Words with Friends?
Words with Friends YES

Definitions for UNFRIVOLOUS in dictionary:

Similar words containing FRIVOLOU without suffix s and without prefix un

frivolous15 frivolously20 nonfrivolous18 frivolousness19 frivolousnesses21
Find what other words can be done using letters: "unfrivolous"
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