Unsympathetic

It's not that I am unsympathetic, but I am not able to help you.

I'm not unsympathetic.

I'm not unsympathetic about what you're going through.

Tom is one of the most unsympathetic people that I know.

Tom is one of the most unsympathetic people I know.

You are more and more unsympathetic for me.

He is unsympathetic to me.

What might not have happened to men? What if cruelty had grown into a common passion? What if in this interval the race had lost its manliness, and had developed into something inhuman, unsympathetic, and overwhelmingly powerful? I might seem some old-world savage animal, only the more dreadful and disgusting for our common likeness— a foul creature to be incontinently slain.

I am unsympathetic to your request as this is your 7th grandfather to have died this year.

His tall, gaunt, stringy figure is insensible to fatigue, and his dry, half-sarcastic, and often wholly unsympathetic manner is uninfluenced by any change in his surroundings.