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belie
To depict falsely; to misrepresent
clandestine
Kept or done in secret, often to conceal an illegal or improper purpose
disingenuous
Pretending to be unaware or unsophisticated; insincere or calculating; not telling the whole truth
dissemble
To disguise or conceal one's feelings or motives behind a false appearance
forthright
Direct; with complete disclosure and honesty; without evasion
nefarious
Openly or notoriously wicked; infamous
perfidious
Disloyal; treacherous
probity
Complete and confirmed integrity; uprightness
scrupulous
Having strict principles; acting in strict regard for what is right or proper
scrupulous
Conscientious and exact; painstaking
spurious
Not genuine; lacking authenticity or validity; false