Is “Undue” a Scrabble word?
Yes
UNDUE
Valid in at least one Scrabble dictionary
Valid in these dictionaries
SOWPODS / CSW
Scrabble UK & International
TWL / NWL
Scrabble North America
Large English Dictionary
General English word list
Meaning of Undue
/ʌnˈdjuː/
adjective
1.Excessive; going beyond that what is natural or sufficient.
“To individuals who despise killings in any form, death penalty is undue punishment.”
2.That which ought not to be done; illegal; unjustified.
3.(of a payment etc) Not owing or payable.