from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. In an impassive manner.
from The Century Dictionary and Cyclopedia
- In an impassive manner; without sensibility to pain or suffering; without sign of feeling or sensibility.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. in an impassive manner
impassive + -ly (Wiktionary)