What is the opposite word for keen?

The opposite of "keen" depends on the context of its usage. Here are a few possibilities:

If "keen" means enthusiastic or eager:

* Apathetic

* Indifferent

* Uninterested

* Unenthusiastic

* Reluctant

If "keen" means sharp or sharp-witted:

* Dull

* Blunt

* Obtuse

* Unintelligent

* Stupid

If "keen" means intense or strong:

* Weak

* Mild

* Faint

* Subdued

* Dim

It's important to consider the specific context of the sentence to determine the most appropriate opposite word.