Sentence:  When Owen Glendower sports various reverberations that lack sonorousness, such <WSD>unacoustic</WSD> micro-events do not fall into the work like random meteorites  whose trajectories happen to cross the orbit of the writer's imagination. Instead the <WSD>unacoustic</WSD> reverberation is emitted from the work's core. 
Meaning of the word marked with <WSD> tags:  Lacking sound or sonority; silent or muffled.