As nouns the difference between obsequiousness and sycophancy
is that obsequiousness is the quality of being obsequious; servile compliance while sycophancy is the fawning behavior of a sycophant; servile flattery.
obsequiousness
English
Noun
(-)
the quality of being obsequious; servile compliance
sycophancy
English
Noun
(sycophancies)
The fawning behavior of a sycophant; servile flattery.
Synonyms
* See also