nonexpression

English

Etymology

From non- +‎ expression.

Noun

nonexpression (countable and uncountable, plural nonexpressions)

1. Absence of emotional expression.
   • 2007 October 2, Kent Sepkowitz, M.D., “Behind the Doctors’ Mask, a Little Room to Maneuver”, in New York Times‎^[1]:

     Everyone who visits now has the same inscrutable nonexpression.

2. That which is not a logical or mathematical expression.