unsaturated

From un- + saturated.

• Audio (US):

  (file)

unsaturated (not comparable)

1. (chemistry, of a solution) Not saturated; capable of dissolving more of a solute at the same temperature.
2. (chemistry) Of a compound containing atoms sharing more than one valence bond, especially of an organic compound having one or more double bonds or triple bonds between carbon atoms.
3. (of a colour) Not chromatically pure; diluted.

• unsaturated fatty acid
• unsaturated fat