怨不得

yuànbude
  1. cannot blame
  2. no wonder

CEDICT

  1. Used other than figuratively or idiomatically: see 怨 (yuàn), 不得.
  2. no wonder; small wonder
  3. to be not able to blame

Wiktionary

不能埋怨、怪罪。

重編國語辭典

Entry Composition

1 怨 yuàn
  1. to blame
  2. (bound form) resentment; hatred; grudge
2 不得 bùdé
  1. must not
  2. may not
  3. not to be allowed
  4. cannot

Related entries

怪不得 guàibude
  1. no wonder!
  2. so that's why!
这家商店人员的态度特好，怪不得顾客也好多。

The staff in this shop are really friendly. It's no wonder they've got so much custom.

The staff in this shop are really friendly; no wonder they've got so many customers.

Source: Tatoeba

怪道 guàidào no wonder!
無怪乎 wúguàihū no wonder (that...)
難怪 nánguài
  1. (it's) no wonder (that...)
  2. (it's) not surprising (that)
難怪他失敗了。

It is no wonder that he failed.

Source: Tatoeba

可知 kězhī
  1. evidently
  2. clearly
  3. no wonder
  4. knowable
你可知道那是你的責任。

You know that that's your duty.

Source: Tatoeba