胸有成竹

xiōngyǒuchéngzhú
(idiom) to have a well-thought-out plan in mind

CEDICT

Entry Composition

=1 胸 xiōng variant of 胸 xiōng
=1 胸 xiōng
  1. chest
  2. bosom
  3. heart
  4. mind
  5. thorax
2 有成 yǒuchéng (literary) to achieve success
3 竹 zhú
  1. (bound form) bamboo
  2. Kangxi radical 118