vaguelyEnglishOxford Dictionary of Englishvaguely /ˈveɪɡli / ▸ adverb 1 in a way that is uncertain, indefinite or unclear; roughly: he vaguely remembered talking to her once. ▪ in a way that is unfocused or lacks attention; absent-mindedly: he nodded vaguely. 2 [as submodifier] slightly: he looked vaguely familiar.