Definition of fleetingly in English:
 fleetingly
adverbˈfliːtɪŋliˈflidɪŋli
For a very short time.
 only fleetingly does she let any strain show
 Example sentencesExamples
-  A man in a black overcoat fleetingly appears throughout the play.
 -  We hope they will have the farsightedness to see past the exuberant accolades that are fleetingly bestowed upon them.
 -  The next four days went fleetingly.
 -  The incidental music is moodily atmospheric though played rather fleetingly.
 -  It's a rare actor who can show up only fleetingly and leave a lasting impression.
 -  They now see each other only fleetingly.
 -  I wondered fleetingly why she was here alone.
 -  He also fleetingly mentioned the abysmal state of public transport across the country.
 -  Other macro themes focusing on such things as poverty and oppression are referred to fleetingly, if at all.
 -  They may have gotten brief, nightly radar hits while the aircraft's weapons bay doors opened fleetingly.
 
  Definition of fleetingly in US English:
 fleetingly
adverbˈflēdiNGlēˈflidɪŋli
For a very short time.
 only fleetingly does she let any strain show
 Example sentencesExamples
-  The next four days went fleetingly.
 -  It's a rare actor who can show up only fleetingly and leave a lasting impression.
 -  They now see each other only fleetingly.
 -  He also fleetingly mentioned the abysmal state of public transport across the country.
 -  The incidental music is moodily atmospheric though played rather fleetingly.
 -  I wondered fleetingly why she was here alone.
 -  We hope they will have the farsightedness to see past the exuberant accolades that are fleetingly bestowed upon them.
 -  A man in a black overcoat fleetingly appears throughout the play.
 -  Other macro themes focusing on such things as poverty and oppression are referred to fleetingly, if at all.
 -  They may have gotten brief, nightly radar hits while the aircraft's weapons bay doors opened fleetingly.