unsympathetic

adj

1. Not sympathetic; ill-disposed

   “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.”

   “After years of unsympathetic commercial use and dereliction, nothing of note remained inside, which accordingly has been reconfigured with modern amenities such as underfloor heating.”