"secretly" in the adverb sense
1. secretly, in secret, on the Q.T., on the QT
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"
not openly inwardly
"they were secretly delighted at his embarrassment"
"hoped secretly she would change her mind"
Source: WordNet® (An amazing lexical database of English)
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