morally degraded; "a seedy district"; "the seamy side of life"; "sleazy characters hanging around casinos"; "sleazy storefronts with...dirt on the walls"- Seattle Weekly; "the sordid details of his orgies stank under his very nostrils"- James Joyce; "the squalid atmosphere of intrigue and betrayal"
not openly; inwardly; "they were secretly delighted at his embarrassment"; "hoped secretly she would change her mind"
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"