Answer: foudroyant

AnswerCrossword Clue
foudroyant(of disease) beginning in a sudden and severe form
foudroyant(French) sudden and overwhelming in effect; dazzling
foudroyantstriking as with lightning; sudden and overwhelming in effect; stunning; dazzling
foudroyantsudden and overwhelming in effect; stunning.
foudroyantsudden and overwhelming in effect.