DETESTABLE Meaning of DETESTABLE in English de ‧ test ‧ a ‧ ble /dɪˈtestəb ə l/ BrE AmE adjective very bad, and deserving to be criticized or hated:a detestable little man —detestably adverb Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012