The state of exceeding what is normal or sufficient: rains that filled the reservoirs to excess. An amount or quantity beyond what is normal or sufficient; a surplus. The amount or degree by which one quantity exceeds another: Profit is the excess of sales over costs. Intemperance; overindulgence: drank to excess. A behavior or an action that exceeds proper or lawful bounds: tried to avoid engaging in emotional excesses such as hysteria and fits of temper. Being more than is usual, required, or permitted: skimming off the excess fat. See Synonyms at superfluous. To eliminate the job or position of. in excess of Greater than; more than: unit sales in excess of 20 million.