anachronistic — belonging to a former time; outdated or old-fashioned

an elderly businessman sits at a sleek modern desk while frantically writing with a large feather quill pen on parchment paper. He dips the quill into an ornate inkwell as his colleagues type on laptops around him. His handwritten documents pile up slowly while others print pages instantly from their computers. The modern workers exchange confused glances and point at his completely outdated writing method. Some shake their heads in bewilderment at his old-fashioned approach in the high-tech environment. behavior that belongs to a former time and appears outdated in the current setting