INESTIMABLE Meaning of INESTIMABLE in English in ‧ es ‧ ti ‧ ma ‧ ble /ɪnˈestəməb ə l, ɪnˈestɪməb ə l/ BrE AmE adjective formal too much or too great to be calculated:a painting of inestimable value Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012