insincere
adjective
[ ɪnsɪnˈsɪə ]
• not expressing genuine feelings.
• "she flashed him an insincere smile"
Similar:
false,
fake,
hollow,
artificial,
feigned,
pretended,
put-on,
exaggerated,
overdone,
lacking sincerity,
not candid,
not frank,
disingenuous,
dissembling,
dissimulating,
devious,
hypocritical,
cynical,
deceitful,
deceptive,
duplicitous,
dishonest,
underhand,
double-dealing,
faithless,
disloyal,
treacherous,
two-faced,
Janus-faced,
lying,
untruthful,
mendacious,
evasive,
shifty,
slippery,
phoney,
fakey,
pretend,
pseud,
Origin:
mid 17th century: from Latin insincerus, from in- ‘not’ + sincerus ‘sincere’.
