non·com·mit·tal 
(nŏn′kə-mĭtl)
(nŏn′kə-mĭtl)adj.
Refusing commitment to a particular opinion or course of action; not revealing what one feels or thinks: "His face was the color of a freshly baked pork pie and as noncommittal" (Thomas Pynchon).
non′com·mittal·ly adv.