Definition of: undertone

(un′dər·tōn′) noun
1. A tone of lower pitch or loudness than is usual; the tone of a subdued voice; sometimes, a whisper.
2. A subdued shade of a color, as when spread thinly on a white surface; also, a color upon which other colors have been imposed and which is seen through them, modifying their effect.
3. A meaning or suggestion implied but not expressed.
4. An underlying stability in the price level of some stocks.