inestimable /ɪnˈɛstɪməbəl/ TEM8

• 1. 

  ADJ If you describe the value, benefit, or importance of something as inestimable, you mean that it is extremely great and cannot be calculated. 无法估计的; 极贵重的 [正式] [usu ADJ n]

  例：

  Human life is of inestimable value.

  人的生命是无价的。