Definition of stealthily in English:
 stealthily
adverb ˈstɛlθɪliˈstɛlθəli
In a cautious and surreptitious manner, so as not to be seen or heard.
 I woke up and stealthily crept downstairs
 we need to move stealthily and look inconspicuous
 Example sentencesExamples
-  He snapped the lens cap back onto the camera and stealthily exited the auditorium.
 -  They were stealthily followed by a blue sports car.
 -  It's a riveting ensemble piece, which stealthily avoids taking sides in the issue.
 -  My mind imagined footsteps stealthily making their way across the loft.
 -  None of the merrymaking warriors is looking towards the long column of tiny figures that is stealthily descending upon them.
 
  Definition of stealthily in US English:
 stealthily
adverbˈstelTHəlēˈstɛlθəli
In a cautious and surreptitious manner, so as not to be seen or heard.
 I woke up and stealthily crept downstairs
 we need to move stealthily and look inconspicuous
 Example sentencesExamples
-  They were stealthily followed by a blue sports car.
 -  My mind imagined footsteps stealthily making their way across the loft.
 -  It's a riveting ensemble piece, which stealthily avoids taking sides in the issue.
 -  None of the merrymaking warriors is looking towards the long column of tiny figures that is stealthily descending upon them.
 -  He snapped the lens cap back onto the camera and stealthily exited the auditorium.