undersensitive

English edit

undersensitive (comparative more undersensitive, superlative most undersensitive)

Insufficiently sensitive.
- 2007 June 5, Benedict Carey, “The Disorder Is Sensory; the Diagnosis, Elusive”, in New York Times‎^[1]:
  They remain oversensitive, continually recoiling from the world, or undersensitive, banging into things, duck-walking through the day as if not entirely aware of their surroundings.