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

11 letters word
17 points in Scrabble
22 points in WWF

Definitions for UNFRIVOLOUS in dictionary:

ADJECTIVE:

not frivolous
characterized by lack of seriousness or sense: frivolous conduct.
self-indulgently carefree; unconcerned about or lacking any serious purpose.
(of a person) given to trifling or undue levity: a frivolous, empty-headed person.
of little or no weight, worth, or importance; not worthy of serious notice: a frivolous suggestion.

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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