Improperer is valid Scrabble Word

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

10 letters word
16 points in Scrabble
19 points in WWF

Definitions for IMPROPERER in dictionary:

OTHER DEFINITIONS:

first-person singular present passive subjunctive of improperÅ

Words related to IMPROPERER

improper14

Similar words containing PROPER without suffix er and without prefix im

proper10 propers11 improper14 properer12 properly15 property15 unproper12 properdin14 properest13 improperly19 properdins15 properness14 propertied15 properties14 unproperly17 disproperty19 propertying19 improperest17 improperness18 propernesses16 propertyless19 unpropertied17 dispropertied19 disproperties18 dispropertying23 impropernesses20 properispomena22 properispomenon23 propertylessnes22 propertylessness23 propertylessnesses25

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