Stolid: showing little emotion; not easily aroused or excited. As in, “The bulldog eyed the fire hydrant, but remained stolid, as was his nature. Frankly, it was unimpressive.”
I will admit that this week I took a shortcut and re-used this bulldog illustration. I created him (and a bunch of other fun critters) for a client project that never saw the light of day. But I couldn’t bear to keep him buried on a hard drive, so I finally took him out for a walk. He has yet to voice his appreciation.