adjective Etymology: Middle English redoutable, from Anglo-French, from reduter to dread, from re- + duter to doubt Date: 15th century causing fear or alarm ; formidable , illustrious , eminent , redoubtably adverb
REDOUBTABLE
Meaning of REDOUBTABLE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012