Here are some examples:
* "The buffet offered a surfeit of delicious desserts, but I was too full to try them all." (Too many desserts)
* "His constant boasting about his wealth was a surfeit of arrogance." (Too much arrogance)
* "The surfeit of information available online can be overwhelming." (Too much information)
Synonyms:
* Excess
* Glut
* Abundance
* Overabundance
* Superabundance
* Oversupply
Antonyms:
* Scarcity
* Lack
* Deficiency
* Shortage