I told Dylan and Madyson that they would not have candy unless they ate their dinner. I told them that the matter was not
a infatuated
b rapt c negotiable
d degraded
e translucent
f reprehensible

C, negotiable.

I told Dylan and Madyson that they would not have candy unless they ate their dinner. I told them that the matter was not negotiable.

Negotiable means that you can't argue or say "If i do this then you do this".

it is used to emphasize the word or sentence.