Improper is valid Scrabble Word

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

Definitions for IMPROPER in dictionary:

Words related to IMPROPER

improperly19 improperness18 indecent11 unproper12 improperer16 improperest17

How to use IMPROPER in a sentence

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