mendacious

disingenuous

adjective

Not candid or sincere, typically by pretending that one knows less about something than one really does.

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dishonest

adjective

Behaving or prone to behave in an untrustworthy, deceitful, or insincere way.

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deceptive

adjective

Giving an appearance or impression different from the true one; misleading.

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deceitful

adjective

Guilty of or involving deceit; deceiving or misleading others.

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