swashbucklerPronunciation: /ˈswɒʃbʌklə/Definition of swashbuckler noun a swashbuckling person: he was an explorer and something of a swashbuckler a film or book portraying a swashbuckling person: two swashbucklers featuring kilted warriors are due to fill cinemas this yearOrigin: mid 16th century: from swash1 + bucklerswashbuckler in other Oxford dictionaries Definition of swashbuckler in the US English dictionary