Nunca
Never
Almost not at all /Not very often
Rarely (w), Scarcely (fw), Hardly (ever), Seldom, Barely
* … when /before -> Inversion used in formal English
To refer to something happening immediately after something else (Formal English)
scarcely/hardly … when
(inversión used)
Scarcely had I got myself comfortable and closed my eyes when I heard the sound of the alarm.