a. 不眨眼的
坚定的，不动摇的

emotionless \e*mo"tion*less\ adj.
1. unsusceptible to, destitute of, or showing no emotion;
unmoved by feeling. Opposite of {emotional}; as, he kept
his emotionless objectivity and faith in the cause he
served. [Narrower terms: {matter-of-fact, prosaic};
{philosophical, philosophic}; {phlegmatic, phlegmatical,
stolid}; {stoic, stoical}; {unblinking}] Also See: {cool},
{passionless}, {unmoved}(predicate), {unmoving}.

Syn: unemotional, passionless.
[WordNet 1.5]