Crossword-Solution: UNDEFINABLE 11 letters, 1 clue 🏆 scrabble score: 17

Royall might, as she phrased it, make her “pay for it.” How, she did not know; and her fear was the greater because it was undefinable.

Flamel’s muscles were under control, but his face showed the undefinable change produced by the slow infiltration of poison.

But this new order of things--a ranch bounded only by the horizons, where, as far as one could see, to the north, to the east, to the south and to the west, was all one holding, a principality ruled with iron and steam, bullied into a yield of three hundred and fifty thousand bushels, where even when the land was resting, unploughed, unharrowed, and unsown, the wheat came up--troubled her, and even at times filled her with an undefinable terror.

Now it had been Selden’s fate to have a charming mother: her graceful portrait, all smiles and Cashmere, still emitted a faded scent of the undefinable quality.

Its panes were always well-washed, and though their display of artificial flowers, bands of scalloped flannel, wire hat-frames, and jars of home-made preserves, had the undefinable greyish tinge of objects long preserved in the show-case of a museum, the window revealed a background of orderly counters and white-washed walls in pleasant contrast to the adjoining dinginess.