Underbuilding is valid Scrabble Word

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

13 letters word
18 points in Scrabble
25 points in WWF

Definitions for UNDERBUILDING in dictionary:

VERB:

UNDERBUILD, to build under in support; to build too little

NOUN:

Same as Substruction.

Words related to UNDERBUILDING

underbuild14

Similar words containing DERBUILD without suffix ing and without prefix un

underbuild14 underbuilds15 underbuilder16 underbuilders17

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

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