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 ]