What is an Antonym for coquetry?

Here are some antonyms for coquetry, depending on the specific nuance you want to convey:

General Antonyms:

* Modesty

* Simplicity

* Plainness

* Seriousness

* Humility

* Sincerity

* Directness

Antonyms focusing on the lack of flirtation:

* Chastity

* Prudence

* Reservedness

* Unattractiveness (though this is more about the result of coquetry than the act itself)

Antonyms focusing on the lack of manipulative behavior:

* Honesty

* Authenticity

* Openness

* Directness

The best antonym will depend on the context of your writing.