What is the antonym of attractive?

The antonym of attractive depends on the context. Here are some possibilities:

General antonyms:

* Unattractive

* Repulsive

* Unappealing

* Unpleasant

* Ugly

* Plain

* Homely

Antonyms specific to certain contexts:

* Repelling (if referring to physical attraction)

* Boring (if referring to personality)

* Uninteresting (if referring to a subject or activity)

* Uninspiring (if referring to a goal or idea)

* Disagreeable (if referring to a person's demeanor)

The best antonym to use will depend on the specific meaning of "attractive" in the context.