形容詞 indistinct:

1. not clearly defined or easy to perceive or understand

1. A low, indistinct sound or utterance.
   含糊的話低的不清晰的聲音或語調(diào)
2. Her words were inward and indistinct when she was in a state of half unconsciousness.
   ＂她處于半昏迷狀態(tài)時，她說話的聲音低沉，模糊不清。＂
3. A low grumble or indistinct utterance.
   咕噥低聲地嘟噥或者不清楚地說話
4. His indistinct speech made it impossible to understand him.
   他口齒不清，無法聽懂他的意思。

in.dis.tinct

adj.（形容詞）
Not clearly or sharply delineated:
輪廓不清晰的：輪廓或界線不清晰或不分明的：
例句：
an indistinct pattern; indistinct shapes in the gloom.
輪廓不明的圖案；黑暗中模糊的形狀

Faint; dim:
微弱的：光亮微弱暗淡的：
例句：
indistinct stars.
暗淡的星星

Hazy, vague:
模糊的：不清晰的：
例句：
an indistinct memory; an indistinct notion of how to proceed.
模糊的記憶；對如何前進(jìn)的模糊想法

Difficult to understand or make out:
難于理解或辨別的：
例句：
indistinct speech.
難以理解的發(fā)言

【引伸】
in.distinct.ly
adv.（副詞）
in.distinct.ness
n.（名詞）