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The opposite of situational awareness. Having no clue what's going on around you. Straight-line thinking - aware of your world and its goings ons only.
Sheila almost ran over a biker because of her situational obliviousness.

Mike called the boss a stuck up turd when he was right behind him. That situational obliviousness has him working the weekend.
by Testicles... that is all April 27, 2011