disconcerned 

Lacking concern for the situation or others.

The safety of the ocean is the oil company's primary concern.

BP seems "disconcerned" about the Gulf oil spill and the catastrophic results of their negligence.

disconcerned by seize BP June 9, 2010

Disconcerted 

To be discomforted, in an awkward situation, not like whats going on.

unsettled, thrown off blaance, confused, taken back, perturbed,

"I was very disconcerted when the whole class looked at me"

Disconcerted by Stefan Brakus May 31, 2006

disconcern 

It's not concerning with something. I. E doesn't want to respond to it/ think about it.

It's not a disconcern.

disconcern by Jessy2 September 12, 2013

Disconcern 

A total , cold hearted lack of human compassion , and concern.

Republicans disconcern for caged children, has waken the beast in me. Now I have a disconcern for their well being.

Disconcern by Rover July 12, 2018