so remarkably different or sudden as to cause momentary shock or alarm; "Sydney's startling new Opera House"; "startling news"; "startling earthquake shocks"
(often followed by `of') not aware; "seemed unaware of the scrutiny"; "unaware of the danger they were in"; "unaware of the newborn hope"; "the most unaware person I've known"
appearing dead; not breathing or having no perceptible pulse; "an inanimate body"; "pulseless and dead"
not breathing or able to breathe except with difficulty; "breathless at thought of what I had done"; "breathless from running"; "followed the match with breathless interest"
tending to cause suspension of regular breathing; "a breathless flight"; "breathtaking adventure"