in·es·ti·ma·ble /ɪnˈestəməbəl/ adjectiveadj formal BIGtoo much or too great to be calculated 〔由于太多或太大而〕难以计算的，无法估计的 a painting of inestimable value 一幅价值连城的画
inestimable• Carey has been an inestimable help in my life.
inestimable value• They are of inestimable value in both financial and scholarly terms.• And self-knowledge at this point is of inestimable value in strengthening oneself against the conflict response.