doze off unexpectedly

Translations
неожиданно задремать
She dozed off unexpectedly during the meeting.
Она неожиданно задремала во время встречи.
Definitions
To fall asleep suddenly and without intending to, often in situations where one is supposed to stay awake.
Words
doze

verb
дремать
doze off

verb
задремать
unexpectedly

adverb
неожиданно