inexpressive

音標發(fā)音

The main fault that has not changed is the clumsy and inexpressive prose style .
尚未改變的主要缺點是其文體臃腫呆板。
translation-dictionary.net
But he remembered how, even then, she had surprised him by dropping back to inexpressive girlishness as soon as her conscience had been eased of its burden;
不過他還記得，即使在那時，她一經(jīng)擺脫良心的重負、恢復了少女的純樸，是如何令他大吃了一驚。

His own face, as he observed the human carnival, was as inexpressive as his tongue, but his eye told him more than they could guess.
NEWYORKER: The Limner
He seemed content with making a visual record, day after day, of that naked, statuary figure, of that slow, docile flesh, of that inexpressive face and those closed or, perhaps, fastidious eyes, of a knee bending or a breast tilting or a forefinger slowly removing a speck from a cheek.
NEWYORKER: While the Women Are Sleeping