inapprehension

Noun

inapprehension (uncountable)

1. (rare) Failure to notice; failure to be aware of; lack of apprehension.
   • These, like the over-largely lettered signs and placards of the street, escape observation by dint of being excessively obvious; and here the physical oversight is precisely analogous with the moral inapprehension by which the intellect suffers to pass unnoticed those considerations which are too...1844, Edgar Allan Poe, The Purloined Letter
   • He paled a little, and sucked his lip, his eyes wandering to the girl, who stood in stolid inapprehension of what was being said.1909, Raphael Sabatini, St Martin's Summer, published 2008, →ISBN, page 29

   Synonyms:

   apprehension, awareness, perception