Pronunciation: (lō'kē'), [key]
—adj., v., -keyed, -key•ing.
1. of reduced intensity; restrained; understated.
2. (of a photograph) having chiefly dark tones, usually with little tonal contrast (distinguished from high-key).
to make or attempt to make low-key: to low-key the arms buildup.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.