excess

American  

[ik-ses, ek-ses, ek-ses, ik-ses] / ɪkˈsɛs, ˈɛk sɛs, ˈɛk sɛs, ɪkˈsɛs /

noun

1. the fact of exceeding something else in amount or degree.

   His strength is in excess of yours.

2. the amount or degree by which one thing exceeds another.

   The bill showed an excess of several hundred dollars over the estimate.

3. an extreme or excessive amount or degree; superabundance.

   to have an excess of energy.

   Synonyms:

   surplus

   Antonyms:

   deficiency, lack

4. a going beyond what is regarded as customary or proper.

   to talk to excess.

5. immoderate indulgence; intemperance in eating, drinking, etc.

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adjective

1. more than or above what is necessary, usual, or specified; extra.

   a charge for excess baggage; excess profits.

verb (used with object)

1. to dismiss, demote, transfer, or furlough (an employee), especially as part of a mass layoff.

excess British  

noun

1. the state or act of going beyond normal, sufficient, or permitted limits

2. an immoderate or abnormal amount, number, extent, or degree too much or too many

   an excess of tolerance

3. the amount, number, extent, or degree by which one thing exceeds another

4. chem a quantity of a reagent that is greater than the quantity required to complete a reaction

   add an excess of acid

5. overindulgence or intemperance

6. insurance a specified contribution towards the cost of a claim, stipulated on certain insurance policies as being payable by the policyholder

7. of more than; over

8. to an inordinate extent; immoderately

   he drinks to excess

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adjective

1. more than normal, necessary, or permitted; surplus

   excess weight

2. payable as a result of previous underpayment

   excess postage

   an excess fare for a railway journey

excess Idioms  

1. see carry too far (to excess); in excess of.

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Etymology

Origin of excess

First recorded in 1350–1400; Middle English (noun and adjective), from Latin excessus “departure, digression,” noun use of past participle of excēdere “to go out”; see exceed

Explanation

Excess is too much of something, like big-time overindulgence. Eating to excess makes your stomach hurt, and spending to excess means you can't pay your credit card bills. Excess comes from the Latin word excessus meaning, "go out, going beyond the bounds of reason," like eating and spending in excess. (Not so reasonable.) Although it spends most of its time as a noun, it can also be an adjective to describe "more than is required or needed," like when excess water spills over the top of the bathtub, or those excess pounds spill over the top of your jeans.

Example Sentences

Fund a 529 with confidence, use what’s needed for education and convert the excess to potentially tax-free retirement savings.

From MarketWatch • Jun. 9, 2026

These measures reduce the risk of excess Chinese steel flooding global markets and putting pressure on prices, the analysts say.

From The Wall Street Journal • Jun. 8, 2026

As electronic devices continue to become smaller and more powerful, removing excess heat has become one of the most significant engineering challenges.

From Science Daily • Jun. 8, 2026

Petrochemical producers received a reprieve from Middle Eastern outages, but China’s excess capacity continues to limit a lasting recovery.

From Barron's • Jun. 7, 2026

A decade and a half later, I was still that hyper, bouncing girl that my mom had enrolled in gymnastics classes so I’d have a place to burn off all that excess energy.

From "Courage to Soar" by Simone Biles

Related Words

• exuberance
• glut
• overkill
• surplus
• waste