冰清玉潔

冰清玉洁
bīngqīngyùjié
  1. clear as ice and clean as jade (idiom); spotless
  2. irreproachable
  3. incorruptible

CEDICT

irreproachable; incorruptible

Wiktionary

比喻品行高潔。《晉書．卷六八．賀循傳》：「循冰清玉潔，行為俗表。」《警世通言．卷二一．趙太祖千里送京娘》：「趙公玩其詩意，方知女兒冰清玉潔，把兒子痛罵一頓。」也作「玉潔冰清」。

重編國語辭典

品行高潔

維基詞典

Entry Composition

=1 冰 bīng
  1. ice
  2. to chill sth
  3. (of an object or substance) to feel cold
  4. (of a person) cold
  5. unfriendly
  6. (slang) methamphetamine

classifier: 塊
=1 冰 bīng variant of 冰 bīng
2 清 qīng
  1. (of water etc) clear; clean
  2. quiet; still
  3. pure; uncorrupted
  4. clear; distinct
  5. to clear; to settle (accounts)
3 玉 yù jade
4 潔 jié clean

Related entries

玉潔冰清 yùjiébīngqīng
  1. clear as ice and clean as jade (idiom); spotless
  2. irreproachable
  3. incorruptible
無可非議 wúkěfēiyì
  1. irreproachable (idiom)
  2. nothing blameworthy about it at all
他总体上是个无可非议的学生。

He is generally an impeccable student.

Source: Tatoeba

廉 lián
  1. incorruptible
  2. honest
  3. inexpensive
  4. to investigate (old)
  5. side wall of a traditional Chinese house (old)
廉直 liánzhí
  1. upright and honest
  2. incorruptible
  3. squeaky clean