high on (adjective) fanatical: overenthusiastic
Sinonime: ambidextrous, backhanded,
deceitful,
deceptive,
devious,
disingenuous, dissembling, dissimulating,
double, double-dealing,
duplicitous,
evasive, faithless,
fake,
false,
hollow,
hypocritical,
lying,
mendacious,
perfidious,
phony,
pretentious, put-on, shifty,
slick,
sly,
snide, two-faced, unfaithful,
untrue, untruthful
Antonime: forthright,
frank,
honest,
open,
sincere