可不容易。

It hasn't been easy.

Source: Tatoeba

Sentence Composition

=1 可不 kěbu see 可不是 kěbushì
=1 可不 kěbù
  1. Used other than figuratively or idiomatically: see 可, 不.
  2. you're absolutely right!; right!; exactly!; isn't that so?
2 容易 róngyì
  1. easy; straightforward
  2. likely; liable to; apt to