An absence seizure without other complications; followed by 3-per-sec brainwave spikes(noun)
WordNet. Princeton University. 2010.
Use "simple absence" in a sentence
"a handsome young Australian, whom we had remarked early in the day for his bronzed, healthy face, long brown beard, and general air of being quite at home – not with a vulgar at home-ishness, but with the simple absence of mauvaise honte peculiar to dwellers in regions where everyone is sure of being a welcome guest."