Lacking expression; blank: an inexpressive stare. (adjective)
Devoid of emotion or style; flat or dull: an inexpressive violin performance. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "inexpressive" in a sentence
"In some of these paroxysms of fancy, Miss Walton did not fail to be introduced; and the picture which had been drawn amidst the surrounding objects of unnoticed levity was now singled out to be viewed through the medium of romantic imagination: it was improved of course, and esteem was a word inexpressive of the feelings which it excited."
"But there's just something inherently inexpressive in his face, some lack of inner self-awareness (the Playlist blog recently made apt reference to "his slack jaw and dead eyes") that's off-putting."
"The exotic, entrancingly inexpressive Maria Montez was born in the Dominican Republic, the daughter of the Spanish consul, and became the admired star of a string of Hollywood Arabian Nights-style romances."