八成

bāchéng
  1. eighty percent
  2. most probably
  3. most likely

CEDICT

  1. (colloquial) most likely
  2. eighty percent
  3. most likely

Wiktionary

  1. 古时治理政事的八种成规。
  2. 成，量词，表示十分之一。八成为百分之八十或十分之八。
  3. 多半、大概。常用于可能性的猜测。

重編國語辭典

Entry Composition

1 八 bā eight
2 成 chéng
  1. to succeed
  2. to finish
  3. to complete
  4. to accomplish
  5. to become
  6. to turn into
  7. to be all right
  8. OK!
  9. one tenth

Containing this entry

八成儿 bāchéngr

Related entries

十之八九 shízhībājiǔ
  1. most likely
  2. mostly (in 8 or 9 cases out of 10)
  3. vast majority
十有八九 shíyǒubājiǔ
  1. most likely
  2. mostly (in 8 or 9 cases out of 10)
  3. vast majority
他十有八九不會準時來。

There is not much possibility of his coming on time.

Source: Tatoeba

横是 héngshi
  1. probably
  2. most likely
多半 duōbàn
  1. most
  2. mostly
  3. most likely
大半 dàbàn
  1. more than half
  2. greater part
  3. most
  4. probably
  5. most likely
我已经活了大半辈子了。

I've already lived most of my life.

Source: Tatoeba