The Collaborative International Dictionary of English v.0.48:
Expressible \Ex*press"i*ble\ (-[i^]*b'l), a. Capable of being expressed, squeezed out, shown, represented, or uttered. -- Express"i*bly,adv. [1913 Webster]WordNet (r) 3.0 (2006):
expressible adj 1: capable of being expressed; "an expressible emotion" [ant: inexpressible, unexpressible]