'Secretly' definitions:

Definition of 'secretly'

From: WordNet
adverb
In secrecy; not openly; "met secretly to discuss the invasion plans"; "the children secretly went to the movies when they were supposed to be at the library"; "they arranged to meet in secret" [syn: secretly, in secret, on the Q.T., on the QT]
adverb
Not openly; inwardly; "they were secretly delighted at his embarrassment"; "hoped secretly she would change her mind"

Definition of 'Secretly'

From: GCIDE
  • Secretly \Se"cret*ly\, adv. In a secret manner. [1913 Webster]

Synonyms of 'secretly'

From: Moby Thesaurus