Unstandardised is valid Scrabble Word

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

Definitions for UNSTANDARDISED in dictionary:

Similar words containing STANDARDIS without suffix ed and without prefix un

standardise13 standardised15 standardiser14 standardises14 standardisers15 standardising16 standardisation17
Find what other words can be done using letters: "unstandardised"
https://scrabble-word.com/finder/unstandardised
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