expressive

Concise Oxford English Dictionary © 2008 Oxford University Press:
expressive/ɪkˈspresɪv/

▶adjective effectively conveying thought or feeling.

■ (expressive of) conveying (a quality or idea).

– derivatives
expressively adverb,
expressiveness noun,
expressivity noun.

– origin ME (in the sense ‘tending to press out’): from Fr. expressif, -ive or med. L. expressivus, from exprimere (see express3).