The definition of impassive is someone who is calm and not feeling pain.
(adjective)An example of impassive is an experienced doctor in an emergency room.
See impassive in Webster's New World College Dictionary
adjective
Origin: < in- + passive
Related Forms:
See impassive in American Heritage Dictionary 4
adjective
Origin:
Origin: in-1
Origin: + passive, suffering (obsolete)
.Related Forms:
Learn more about impassive