Words similar to impassive

Example sentences for: impassive

How can you use “impassive” in a sentence? Here are some example sentences to help you improve your vocabulary:

In what other language can quite a lot and quite few mean the same thing, as well as loosen and unloosen, ravel and unravel, passive and impassive, flammable and inflammable, shameful and shameless (behavior) and What won't he do next ? and What will he do next ? In what other language are overlook and oversee opposites but a slim chance and a fat chance the same?
Even when the face is utterly impassive, we can know what it's thinking, I know what it's thinking , and enjoy a moment of mind reading."
Elena McMahon, given to "fast walks and clean starts," fits the mold of her predecessors, sensitive yet impassive females proficient at forgetting and at never looking far ahead.
Lehrer isn't always as flat as he was required to be in the debates, but there is the same vacant and impassive style, and there are (for my taste), too many of the same easily answered--or evaded--questions.
Will a flicker of emotion crease his usually impassive glare as he ponders a she-said, he-said fact pattern so hauntingly reminiscent of his own ordeal five years ago?