Untrespassing is valid Scrabble Word

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

Definitions for UNTRESPASSING in dictionary:

Similar words containing TRESPASS without suffix ing and without prefix un

trespass10 trespassed13 trespasser12 trespasses12 trespassers13 trespassing14
Find what other words can be done using letters: "untrespassing"
https://scrabble-word.com/finder/untrespassing
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