ACIDLY Meaning of ACIDLY in English ac ‧ id ‧ ly /ˈæsədli, ˈæsɪdli/ BrE AmE adverb if you say something acidly, you say it in a cruel or unkind way:‘I’m sure you’re right,’ he said acidly. Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012