The term 'vulpine' is used to describe characteristics of foxes, and the crossword solutions for this term are 'SLY, ' 'CLEVER, ' 'CRAFTY, ' 'FOXY, ' and 'FOXLIKE.' These words all refer to the same idea of being SLY, CLEVER, and CRAFTY in order to achieve a goal. The word 'FOXY' is often used to describe someone who is attractive and charming, while 'FOXLIKE' is used to describe something that resembles a fox. All of these words can be used to describe the cunning nature of foxes.