WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adjective.
abnormally deficient in color as suggesting physical or emotional distress
adjective.
lacking in vitality or interest or effectiveness
adjective.
(of light) lacking in intensity or brightness; dim or feeble
Word Usage
"When it becomes "civilized" it becomes anæmic, and crawls feebly in pallid mauves and greens, with long spindle stalks that lack vitality to throw out more than one or two atrophied leaves."