Falsely disloyal (6)

I believe the answer is:

untrue

I believe this clue is a double definition.

'falsely' is the first definition.
(thesaurus)

'disloyal' is the second definition.
(similar in meaning)

(Other definitions for untrue that I've seen before include "Not correct, like a lie" , "Inexact" , "disloyal" , "Sleeping around" , "Not faithful" .)

I've seen this clue in The Globe and Mail.

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