[adverb]stoutly-made boots(figurative) They have stoutly (= firmly and determinedly) denied the recent rumours that there are problems with their marriage.(figurative) He spoke passionately about animal rights, a cause in which he stoutly (= firmly) believed.
STOUTLY
Meaning of STOUTLY in English
Cambridge English vocab. Кембриджский английский словарь. 2012