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Just for anyone who is not sure of the exact definition:
Disingenuous
adjective
not candid or sincere, typically by pretending that one knows less about something than one really does.
"this journalist was being somewhat disingenuous as well as cynical"
synonyms: dishonest, deceitful, underhand, underhanded, duplicitous, double-dealing, two-faced, dissembling, insincere, false, lying, untruthful, mendacious;