しんそこ

  1. noun (common) (futsuumeishi)

    bottom of one's heart, depths of one's mind, innermost thoughts, real intentions

    • 彼は心底は善人だ。
      He is a good man at heart.
  2. adverb (fukushi)

    from the bottom of one's heart, wholeheartedly, truly, sincerely

    • 君には心底失望したよ。
      I'm very disappointed in you.