impassive

unmoved feeling no sign of passion 
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impassive

[adj] - having or revealing little emotion or sensibility
Found on http://www.webdictionary.co.uk/definition.php?query=impassive

Impassive

Im·pas'sive adjective Not susceptible of pain or suffering; apathetic; impassible; unmoved. « Impassive as the marble in the quarry.» De Quincey. « On the impassive ice the lightings play.» Pope. -- Im*pas'sive*ly ,
Found on http://www.encyclo.co.uk/webster/I/16

impassive

stolid adjective having or revealing little emotion or sensibility; not easily aroused or excited; `her impassive remoteness`; `he remained impassive, showing neither interest in nor concern for our plight`- Nordhoff & Hall; `a silent stolid creature who
Found on http://wordnetweb.princeton.edu/perl/webwn?s=impassive

Impassive

• (a.) Not susceptible of pain or suffering; apathetic; impassible; unmoved.
Found on http://thinkexist.com/dictionary/meaning/impassive/

impassive

impassive, impassivity, impassiveness 1. Not feeling pain; not feeling or showing emotion. 2. Expressionless, unresponsive to something that might normally excite interest or emotion. 3. Insensible, unconscious; placid, serene, calm, unperturbed; apathetic. 4. Deprived of feeling or sensation; insensible, unconscious.
Found on http://www.wordinfo.info/words/index/info/view_unit/2571/2
No exact match found