Unfluid

And presently Mrs. Arthur Moorhouse was to be seen waltzing with just that right amount of unfluid dignity, that regal stiffness that comes with middle age, a touch of rheumatism, and an evergrowing sense of one's own consequence.

Source: wiktionary

The way we are taught in school is to gather facts and concepts, so that, in the end, we grow up with a very fixed and unfluid sense of how things are.

Source: wiktionary

Naturally, the river wasn't wrinkled or creased at all— wrong words, implying something unfluid like skin, something unenduring, prey to age.

Source: wiktionary