This one was almost featureless, as if still in the making, with an aspect of monotonous grimness.
The monotonous beating of a big drum filled the air with muffled shocks and a lingering vibration.
The long reaches that were like one and the same reach, monotonous bends that were exactly alike, slipped past the steamer with their multitude of secular trees looking patiently after this grimy fragment of another world, the forerunner of change, of conquest, of trade, of massacres, of blessings.
There are no more uses of "monotonous" in the book.
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The cafeteria food is good, but it gets monotonous after a while.