What is an antonym for sarcasm?

There isn't a single perfect antonym for sarcasm, as the word encompasses a range of meanings. However, depending on the specific context, some good options include:

General Antonyms:

* Sincerity

* Seriousness

* Directness

* Frankness

* Honesty

* Literalness

More Specific Antonyms:

* Flattery (when sarcasm is used to mock or belittle)

* Humorous (when sarcasm is used for humor)

* Genuine (when sarcasm is used to conceal true feelings)

The best antonym will depend on the specific meaning of sarcasm being used in the situation.