Indifferent

/ɪnˈdɪf(ə)rənt/

having no particular interest or sympathy; unconcerned.

"he gave an indifferent shrug"

neither good nor bad; mediocre.

"a pair of indifferent watercolours"

Apathetic
/ˌapəˈθɛtɪk/ showing or feeling no interest, enthusiasm, or...

Bored
/bɔːd/ feeling weary and impatient because one is unoccupied or lacks interest in...

Bad
/bad/  poor quality or a low standard. "a bad diet" not such as to...

Emotions Wheel
I have enjoyed working with the emotions I found in Plutchik, but there are so many more...